著者

山口 学

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.43, no.5, pp.335-339, 2006 (Released:2009-10-15)

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To make the Digital Society secure and convenience, a new concept of Time Authentication has become a one of the important issues to be addressed. This paper describes the overview of Time Authentication Infrastructure and implementation case study.

著者

金子 和正

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.45, no.4, pp.230-233, 2008 (Released:2010-12-15)

参考文献数

5

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Hikifuda -business advertisement- with an illustration created in the Edo era was developed in the Meiji era by the printing technology improvement to calendar types and even to page-a-day style calendars, which formed the fundamentals of today's calendar variations. Hikifudas with an illustration in a major way were appreciated by common people as plain arts and led to picture supplements of major newspapers and the emergence and popularity of business posters. However such common arts ceased in the 10s of the Showa era by the popularity of page-a-day style calendars from the Taisho to Showa eras and the controlled economy during the World War II, and did not recover before 1945. One may observe the enthusiasm and efforts of professional people dedicated in printing in the Meiji era, safe and comfortable life, long for material wealth, and change and accumulation of people's various desires through those hikifudas.

著者

三品 博達 田中 恒雄

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会論文集 (ISSN:00400874)

巻号頁・発行日

vol.21, no.1, pp.13-21, 1983

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A New image modulation process for printing by means of laser speckle pattern is proposed and analysed theoretically by standing on optical and staitistical base. In this method, image plane laser speckle pattern is used for the modulation in a platemaking process instead of usual contact or glass screesn. It can be shown that the characteristics of image modulation in this process are closely related to the first order statistics of laser speckle which represent the intensity probability distribution function.<br>By considering the platemaking and printing process, the relation between the density of the original and printed image is obtained for various surface roughness and different parameters of optical system. As the results, the widest and most linear reproduction curve is given when the speckle pattern having the contrast value of 0.5 is used for image modulation. The screen range of speckle modulation depends strongly on the ratio of the threshold level of the sensitized plate to the average intensity level of the speckle pattern.

著者

佐々木 寛

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.49, no.4, pp.244-251, 2012

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The use of electronic money based on digital data is spreading in today's society thanks to recent advances in information technology. In Japan, electronic payment systems such as Edy, Suica, PASMO, nanaco, and WAON have become increasingly popular, and they are used widely for making small payments. This study aims to assess the influence of the proliferation of electronic money on present currency by investigating the status of electronic money usage, the amount of currency in circulation, and other factors. The results indicated that the proliferation of electronic money influences the circulation of notes only slightly, while its effect on coins with smaller denominations is non-trivial.

著者

宮坂 力

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.46, no.6, pp.254-259, 2009 (Released:2010-01-15)

参考文献数

15

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Applications of non-vacuum rapid printing technologies to manufacture of organic photovoltaic cells are reviewed focusing on material preparation and low-temperature coating method in the developments of organic thin photovoltaic cells and dye-sensitized solar cells. Regarding the dye-sensitized solar cell, use of ITO-coated plastic films as electrode substrates is discussed in aspects of conversion efficiency and durability. Conversion efficiency exceeding 6% and durability of 1000h at 60°C with continuous sunlight exposure are obtained. Large-area lightweight full-plastic integrated modules of bifacial photovoltaic ability have been constructed by printing methods, which are capable of DC 110V output under weak diffused light and indoor illumination.

著者

今橋 聡 鍋坂 信也 中里 俊二 河辻 輝之 本川 禎久

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.45, no.5, pp.397-413, 2008

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The market and technical developments for flexo printing system in Japan was behind to Europe and America. Today's market share of flexo printing in Japanese printing industry is only 9% and most field of flexo printing is occupied by corrugated cardboard printing and paper bag printing. Flexo printing has a lot of advantages, such as the use of environment-friendly inks, suitability to printing with many varieties of small lot and short delivery date and energy saving high speed printing. Printing quality in flexo printing has improved and come to be almost comparable with gravure printing or offset printing thanks to technical innovation namely high-performance printing press, high-quality ceramic anilox roll, chambered doctor-blade system, digital plate-making system and so on. Recently in Japan much interest for flexo printing process has been increased especially in flexible packaging industry, due to current environmental issues and demand for cost reduction. At present some issues for expanding of flexo market have been pointed out. These include cost reduction of materials and machines, improvement of performance of water based on flexo ink, and development of prepress technology suitable for flexo. Flexo printing is expected to be improved in performance, replace gravure printing in flexible packaging industry and offset printing in carton industry and be used in new markets in near future. It has been pointed out that the combination of flexo printing with other printing systems, such as offset printing and gravure printing will lead to creation of new demands and new markets.

著者

木内 正人

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.54, no.4, pp.239-246, 2017

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Today, information dissemination using Web media is common. The information I personally sent was approved as a UNESCO "Memory of the World" on October 10, 2015. Personal information diffused through new media called web media and integrated with existing media such as print media and broadcasting media was uniquely developed based on the keyword "empathy."

著者

田仲 明子 北村 満

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会 研究発表会 要旨集

巻号頁・発行日

vol.111, pp.10, 2003

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微細加工技術と光学シミュレーション技術、情報の符号化技術を組み合わせることで計算機合成ホログラム(CGH)の開発を行い、その実用化に成功した。我々は、このCGHを「バーチャグラム<SUP>TM</SUP>」と呼んでいる。バーチャグラム<SUP>TM</SUP>は、CG用に作成した3次元形状データを元にして、ホログラムの原理を忠実に計算機シミュレートすることで、仮想的な物体を3次元表示可能としたホログラムである。その応用として、フルカラー化、3次元画像の切り替え再生、隠しマイクロ文字、さらに測定データの可視化が挙げられる。バーチャグラム<SUP>TM</SUP>は、意匠用途への利用の他、精密で高精細な3次元画像再生を必要とするハイセキュリティ分野など、その視覚効果を利用して様々な用途への発展が期待される。

著者

梅原 英一

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.58, no.1, pp.18-22, 2021 (Released:2021-03-15)

参考文献数

5

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Recently, the digital transformation of university libraries has been underway. The Ministry of Education, Culture, Sports, Science and Technology (2011) proposed the digitization of educational facilities of universities, such as libraries. In addition to e-journals and e-books, libraries also provide learning environments, such as Learning Commons, which rely on IT. However, many universities have not yet entirely harnessed the potential of IT. Library digitization has many benefits, such as cost and space savings, and e-libraries can support students' voluntary learning, such as PBL. However, problems with the university library organization's IT capabilities can hinder the implementation of e-libraries. We conducted a case study to analyze the IT capabilities of the Tokyo City University library organization. IT-CMF has been proposed as a framework for analyzing an organization's IT capabilities. A questionnaire survey based on the IT-CMF was conducted with the university library organization. We identified the IT capabilities needed for a university library. First, from a high-level survey, we identified five important capabilities needed for IT utilization, namely risk management (RM), sourcing (SRC), business process management (BPM), business planning (BP), and financing (FF). Second, for a more in-depth survey, we interviewed the director of the library organization and determined SRC as the most important IT capability. We thus identified goals and scopes (A2) as the crucial capability-building blocks of SRC.

著者

永井 祥一

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.45, no.1, pp.21-26, 2008 (Released:2011-06-15)

著者

小川 章

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.48, no.5, pp.310-314, 2011

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"Dream page" can produce an original book by registering a digital image of a photograph etc., on a special site, choosing a favorite layout, and editing images and sentences. The concepts "it can do" and "it is possible to make it for everyone easily" were realized by the software available only from our original "Web type application".The rich Internet application (RIA) technology with a friendly user interface has been selected in agreement with the theme. High levels of usability and high quality were achieved because of the adoption of RIA. Further evolution of the photo book service is expected. The method used by major SNSs such as "Facebook" and "mixi" will be expanded and optimized for various smart phone platforms that are expected to see major growth in the future.

著者

重田 定明

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.32, no.5, pp.284-289, 1995-09-30

参考文献数

6

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In 1990, 5. 25 &ldquo;mageneto-optical disk (MO) was released on the market, conforming to ISO standard. After that, 5.25 MO has been steadily growing up and doing a great deal as a file-server application for workstation so called auto-changer. On the other hand, right after 3.5&rdquo; MO (230MB) following 128MB had been introduced, 3.5 &ldquo;MR market has been rapidly becoming popular due to reasonable prices and inprovements of drive functions. The future status of 3.5&rdquo; MO whose maket expantion is expected is mainly described including the technologies for higher recording density.

著者

木内 正人

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.54, no.4, pp.239-246, 2017 (Released:2017-09-15)

参考文献数

22

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Today, information dissemination using Web media is common. The information I personally sent was approved as a UNESCO "Memory of the World" on October 10, 2015. Personal information diffused through new media called web media and integrated with existing media such as print media and broadcasting media was uniquely developed based on the keyword "empathy."

著者

渡部 和雄

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.52, no.1, pp.061-068, 2015 (Released:2015-03-15)

参考文献数

15

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While the sales volume of electronic books (e-books) in Japan is expanding, it accounted for less than one-tenth of that of print books in 2013. In this study, our objective is to validate four hypotheses about e-book usage in order to develop strategies to promote e-book usage. We conducted a consumer survey to identify the differences between e-book and print book readers. In this study, we examine the degree of readers' interest in books in general, their awareness of the advantages and disadvantages of e-books, and the media they use for gathering information. By using a two-sample t-test, our analysis indicates that, although e-book readers are not very satisfied with print books, they are more interested in books than print-book readers. E-book readers place a higher value on the usefulness and usability of e-books than readers of print books do, while print book readers do not perceive a need for e-books in their daily lives. Further, e-book readers collect information through print books, magazines, and the Internet more frequently than print book readers do. Finally, we offer some suggestions for e-book related corporations for promoting e-book usage.

著者

内田 明日香 尾崎 靖

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.57, no.3, pp.141-145, 2020 (Released:2020-07-15)

参考文献数

12

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In order to maintain stable printing and avoid printing troubles during UV (Ultra-Violet) curable printing, it is important to understand the curing reaction both on the surface and within the ink films. In this study, the depth profile of offset printing ink films (with a thickness of a few micrometers) on coated paper was analyzed non-destructively from the surface side using confocal Raman microscopy (CRM). Spatial resolution of 0.2 um was obtainable using an oil lens. As a result, the structure of offset ink layers could be evaluated in detail. In addition, the UV curing reaction of overlapping multicolor offset inks could be estimated using CRM techniques. Moreover, the three-dimensional distribution of ink components in multicolor offset printing could be also visualized.

著者

安井 健悟

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.43, no.3, pp.164-172, 2006 (Released:2009-06-15)

参考文献数

19

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The development of the recent ink jet printing technology is remarkable for the quality of printing. It has the imaging quality as well as photograph has. Dye has been used for ink so far. However, dye has weak points about tolerance to water and color fastness to light. It is the driving force to change dye inks to pigment inks. However, the needs of the water based pigment inks decrease to develop UV inks or Solvent inks. In addition, the improvements of fastness to light for dye have promoted the decreasing. A turning point comes for the water based pigment inks. This paper describes such a situation of the water based pigment inks.

著者

蔭山 芳明

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.44, no.5, pp.275-278, 2007 (Released:2011-10-15)

被引用文献数

1

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Fujitsu has launched world first film based color e-paper in 2005 and has been continuing improvement especially on its size, resolution and optical characteristic. In this issue, we would like to introduce principle of cholesteric liquid crystal e-paper, feature of 8-inche and 12-inche panels, and the device which we adapted our e-paper panel.

著者

野口 武悟 植村 八潮

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.52, no.1, pp.025-033, 2015 (Released:2015-03-15)

参考文献数

11

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In this paper, we describe the current status and issues of e-book services in Japanese public libraries. Currently, e-book services have only been introduced in 30 public libraries. Many issues have already been identified, including clarification of accounting standards for e-books, standardization of public library systems and publisher contract rules regarding e-books, guarantee of the public library budget regarding e-book service, increase of genres and title numbers of e-books by publishers, improvement of accessibility function of e-books, and so on. In the future, in order to nurture the spread of e-book services in public libraries, cooperation between public libraries, publishers, wholesale e-booksellers, and system vendors is important.

著者

小寺 宏曄

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.42, no.1, pp.19-27, 2005 (Released:2008-08-01)

参考文献数

42

被引用文献数

5

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Facing 600th anniversary of Gutenberg's birth in 2000 A.D., we should look back the historical significance of letterpress technology and take a step forward into new age of digital imaging. Now imaging technology plays a leading role in visual communication, but meets severe assessment to satisfy human vision. Not only advances in high precision and high definition digital media, but also "Intelligent Image Processing" technologies will be necessary for more aesthetic and pleasant imaging. Collaboration with human vision software and development in content-based algorithm are expected to advance the next generation color imaging technology for multi-media. This paper introduces four challengeable topics on "Adaptive Image Sharpening", "Retinex-based Appearance Improvement", "Bi-deirectional Gamut Mapping", and "Scene-referred Pleasant Color Reproduction".

著者

柴谷 正也

出版者

社団法人 日本印刷学会

雑誌

日本印刷学会誌 (ISSN:09143319)

巻号頁・発行日

vol.48, no.4, pp.246-250, 2011 (Released:2011-09-15)

参考文献数

9

被引用文献数

1

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Inkjet textile printing and IC marking devices are examples of the latest advances in industrial inkjet applications. The use of the inkjet textile printing technology is spreading in the Italian high-quality cloth market because of its ability to cater to on-demand printing requirements while providing excellent quality. For example, Monnalisa, which has specific colored inks and requires an integrated, densely-packed print head, has successfully achieved high-grade print quality even for high production rates. It will produce the expected result in markets in other nations provided users take interest in the promotion of digitalization for small-lot production. Inkjet IC marking devices have the advantage of being able to produce damage-free ICs, while printing images having good visibility and providing the on-demand printability feature. For example, IP2000 is printed on with visible white ink that is used in combination with UV and heat cure systems. This technology will evolve suitably to enable its use with small IC chips or thinned array packages in the near future. Inkjet technology is said to have a wide range of existing and potential applications in the industrial sector. As inkjet technology progresses, it appears that further progress in this technology requires simultaneous advances in the peripheral technology that enhances the overall inkjet printing system.