著者

中山 俊介 小堀 信幸

雑誌

保存科学 = Science for conservation

巻号頁・発行日

no.52, pp.275-287, 2013-03-26

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Outside the museum of local history and culture managed by the town and located next to the Iejima Port in Iejima, Okinawa prefecture is a small silver torpedo-shaped boat. It is known as a “tank boat.”A “tank boat”is defined as “a boat using the fuel tank of an aircraft to catch octopuses and other fish in a reef.”Traditionally in Okinawa, wooden boats called sabani were used in reefs and coastal regions for fishing. It was these “tank boats”that people of Okinawa engaged in fishing depended on temporarily after having lost many tools necessary for life as a result of damage caused by the Pacific War. An investigation of museums in Okinawa where such “tank boats”are preserved and exhibited revealed that there are several such museums. This is a report on the investigation in the form of interviews held in February 2011 at each of these museums concerning documents and the present condition of such “tank boats.”

著者

中山 俊介 大河原 典子 池田 芳妃 安部 倫子

雑誌

保存科学 = Science for conservation

巻号頁・発行日

no.51, pp.243-248, 2012-03-31

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The Filmon endless sound-belt,the subject of this report,is a celluloid sound recording media manufactured in 1937 by Nihon Filmon Co.,Ltd.at what is now Komae-shi,Tokyo. The sound belt was developed in Japan to overcome the short recording time possible on SP records,which at that time was the mainstream recording media in the world. It is an extremely short-lived recording media that disappeared in about 3 years with the development of magnetic tapes for recording. Although short-lived, the sound belt made long recordings at one stretch possible,which could not be done with SP records. Thus,valuable recording of kiyomoto, nagauta and other types of Japanese music have remained. The Department of Intangible Cultural Heritage of the National Research Institute for Cultural Properties, Tokyo and The Tsubouchi Memorial Theatre Museum Waseda University have embarked on a joint study and digitization of the Filmon endless soundbelts in collections of the Institute, the Museum and other museums as well as in private collections. This report discusses the method that has made it possible to restore and to re-listen to deteriorated (hardened, deformed) or severed Filmon endless sound-belts.

著者

中山 俊介 大河原 典子 安部 倫子

雑誌

保存科学 = Science for conservation

巻号頁・発行日

no.52, pp.243-247, 2013-03-26

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In the previous issue of this bulletin (Science for Conservartion 51, published in 2011), a report was made on a method for restoring deteriorated (hardened or deformed)Filmon Endless Sound-Belt. The previous method employed the typical characteristic of celluloid, that celluloid is a heat-reversible material. In other words,it starts to soften when temperature exceeds 65℃ and becomes completely soft when temperature exceeds 85℃ and reaches 100℃, but regains its hardness and resilience when cooled. However, there were several problems with this method. For instance, there was a risk that the unwound tape would become damaged in the process of rewinding it and that applying too much heat would damage the sound grooves. This year the previous method was revised to solve these problems and soften the sound-belt so that it can be replayed.

著者

飯島 満 永井 美和子 中山 俊介

雑誌

無形文化遺産研究報告 = Research and Reports on Intangible Cultural Heritage

巻号頁・発行日

no.5, pp.53-76, 2011-03-31

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Filmon endless sound-belt is a medium capable of recording for a long time. It was developed in Japan in the latter half of the 1930s. While the recording time of a 10-inch record, which was generally the most popular type of record at the time, is about 3 minutes, it was possible to record for over 30 minutes on a Filmon endless sound-belt. Today, Filmon endless sound-belt is half forgotten for several reasons. First, it was manufactured only for a short period, from 1938 to 1940; second, a special player was necessary; and third, open-reel tapes and LP records appeared after World War II. The National Research Institute for Cultural Properties, Tokyo has been conducting jointinvestigation of the Filmon endless sound-belt with The Tsubouchi Memorial Theatre Museum Waseda University since the fiscal year 2009. In this intermediate report, focus is placed on what types of contents were recorded on sound-belts and how many of each were manufactured as well as how many of them can be confirmed to exist today.