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USPTO Data Jan 1 1976 - Dec 30 2025
2 Patents
#4,066 in Tokyo
#10,973 in Japan
Otsuka Iron Works, Ltd.
Forward Citations = 5
8 inventors:
Otsuka Iron Works, Ltd.
Forward Citations = 5
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8 inventors (with patents filed for the assignee):
Hidekazu Takahashi (2 out of 36 patents)
Sousuke Naito (2 out of 2 patents)
Toshio Watanabe (1 out of 36 patents)
4. Shunzo Shimai (1 out of 12 patents)
5. Tomeyoshi Nakajo (1 out of 1 patent)
6. Junya Yamano (1 out of 1 patent)
7. Yasuji Otsuka (1 out of 1 patent)
8. Toshio Watanabe (1 out of 28 patents)
2 patents:
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