Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34598 | Highly pure titanium | Kazumi Shimotori, Hideo Ishihara, Takenori Umeki, Takashi Ishigami | 1994-05-03 |
| 4891066 | Highly pure titanium | Kazumi Shimotori, Hideo Ishihara, Takenori Umeki, Takashi Ishigami | 1990-01-02 |
| 4793854 | Highly pure titanium and process for producing the same | Kazumi Shimotori, Hideo Ishihara, Takenori Umeki, Takashi Ishigami | 1988-12-27 |
| 4634635 | Black ornament | Yasuhisa Shiraishi, Takashi Fujita, Masahiko Hirose, Katsutarou Ichihara, Takashi Ishigami | 1987-01-06 |
| 4420498 | Method of forming a decorative metallic nitride coating | Masahiko Hirose, Tsuyoshi Yasui, Masatoshi Nakagawa | 1983-12-13 |