2 0 0 0 OA 鉱山開発と地域環境 -一八八〇年代における小坂銀山の技術と経営を中心として-
- 著者
- 岡田 有功
- 出版者
- 経営史学会
- 雑誌
- 経営史学 (ISSN:03869113)
- 巻号頁・発行日
- vol.37, no.1, pp.1-27, 2002-06-25 (Released:2009-11-06)
The purpose of this paper is to describe the development of Kosaka Silver Mine in the 1880s in terms of the relationship between the running of the mine and regional environment.In 1861, the operation of Kosaka Silver Mine started in earnest. Moreover, it was placed under the government management in 1869. Some changes in silver refining were effected by the introduction of various technologies and brought about improvement in mining. Since Ziervogel's process, which Curt A. Netto adopted in 1877, resulted in large charcoal consumption, trees were cut down for the use in the mine. As a result, only a few trees were left in the surroundings of the mine.Kosaka Mine operated on a loss. The change in refining technologies from Ziervogel's process to Augustine's process in 1881 lowered the costs and brought profits and success to the management. The conversion of the refining process was initiated by Ohshima Takatou. In 1884, the government disposed of Kosaka Silver Mine by selling it to Fujita Gumi & Co., under which business management policy changed and cut expenditures in the mine.Kosaka Silver Mine became the principal silver mine in Japan. Development of the mine returned profits to Kosaka's society by creating employment opportunities. In the 1880s, the development of the mine resulted in a population explosion in Kosaka village and improvements in the regional infrastructure, such as the building of an elementary school, post office, police substation, and many stores. The mine thus donated to the village and contributed to the community.The mine was able to produce a large volume of silver and changed the regional environment as the living spaces of the inhabitants into those that depended on the mine. The sustainable management in turn required the continuation of the regional environment.
- 著者
- 白崎 圭亮 岡田 有功 佐野 憲一朗 岩月 秀樹
- 出版者
- 一般社団法人 電気学会
- 雑誌
- 電気学会論文誌B(電力・エネルギー部門誌) (ISSN:03854213)
- 巻号頁・発行日
- vol.138, no.8, pp.651-658, 2018-08-01 (Released:2018-08-01)
- 参考文献数
- 11
- 被引用文献数
- 3
Flicker may be caused by “frequency feedback method with step injection of reactive power” installed in PCS which is generally used as grid-connected inverter in Japan. Therefore, in this paper, characteristics of the flicker were investigated by experiments with actual PCS in single phase circuit. Furthermore, effective means for suppressing the flicker was considered by taking the cause of occurrence of flicker into account. Moreover, it was clarified the differences among PCSs on flicker using multiple actual PCSs. In conclusion, gain of frequency feedback function should be reduced as one of effective means to avoid flicker.
1 0 0 0 OA 近代日本における公害問題と企業の社会的責任 ―明治期の藤田組を事例として―
- 著者
- 岡田 有功
- 雑誌
- 州共立大学研究紀要 = Study journal of Kyushu Kyoritsu University (ISSN:21860483)
- 巻号頁・発行日
- vol.7, no.2, pp.1-10, 2017-03-31
The purpose of this paper is to consider how the mine company took the action against the pollutionproblem in 1900`s from the point of view of corporate social responsibility.Kosaka Mine run by Fujita-gumi & Co. came to be counted as one of the four largest copper minesby succeeding in the development of smelting technology. At the same time, however, the mine wasfacing a serious air pollution problem. In 1901 the mine dealt with the problem quickly, such as damageinvestigation and compensation for damages. Fusanosuke KUHARA, Office manager at Kosaka Mine,and his subordinate Yatarō KADO played a central role in the activities. President of Fujita-gumi &Co. Denzaburō FUJITA also contributed to the community by making a donation. They tried to fulfillcorporate social responsibility activities. When KUHARA and KADO left that company, and FUJITAbecame aged, the company was aimed at restructuring from decentralized organization to centralizedorganization since 1909.Under reorganization of the company and the expansion of the stricken area, fulfilling socialresponsibility was limited because it was regarded as a cost.