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He joined Ricoh Company, Ltd. in 1981 and participated in the establishment of Ricoh's semiconductor business, and has been involved in the semiconductor business for about 40 years. As an engineer and manager, he is involved in semiconductor front-end manufacturing engineering, equipment engineering, product engineering, manufacturing process development in research laboratories, and launch of outsourced front-end production in Asian countries. After that, as a senior manager, he was in charge of overall production technology including semiconductor back-end process, as well as overall production management including production control and purchasing. He has also been a lecturer on etching technology at seminars organized by SEMI, an industry organization, for more than 20 years. Now the company has been spun off as Nisshinbo Microdevices (formerly Ricoh Electronic Devices Co., Ltd.), he advises on overall sales strategies and also plays the role of a "storyteller of the company's history."