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Graduated from Sophia University, with a major in high polymer chemistry, and then entered Teijin Co., Ltd.. |
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Assigned to acetate section, Teijin Co., Ltd. in Matsuyama-factory． |
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Assigned to patent section, the main office in Tokyo Teijin Co., Ltd., |
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Registered as a patent attorney. |
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Retired from Teijin Co., Ltd. |
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Opened Shirai International Patent Office. |
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Graduated from Electro-Communicate University. |
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Technical Staff
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