Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5086545 | One-action paper clip | — | 1992-02-11 |
| 4934440 | Mold surface treatment process and mold | Yuji Sakakibara, Hiroaki Hayashi, Yasuo Takada, Akihiko Suda, Yoshiro Hayashi +3 more | 1990-06-19 |
| 4767801 | Molding material and mold | Yasuo Takada, Yuji Sakakibara, Masahiro Sugiura, Hiroaki Hayashi, Osami Kamigaito | 1988-08-30 |
| 4713444 | Finishing method of polymer slurry | Kiyoshi Matsuyama, Takeshi Chigusa | 1987-12-15 |
| 4709198 | High-speed machining controller | Kazutaka Ogo, Masahiro Hayashi, Katsuiku Hokao, Akio Asai, Takayuki Tsuruhashi | 1987-11-24 |
| 4691756 | Molding material and mold | Yasuo Takada, Yuji Sakakibara, Masahiro Sugiura, Hiroaki Hayashi, Osami Kamigaito | 1987-09-08 |
| 4656868 | Method and apparatus for discriminating cutting state from non-cutting state in machine tool | Hidekazu AZUMA, Ryozi Yoshinaka, Takayuki Tsuruhashi, Katsuiku Hokao, Kazuki Watanabe +2 more | 1987-04-14 |
| 4597808 | Process for ion nitriding aluminum or aluminum alloys | Hideo Tachikawa, Hironori Fujita, Tohru Arai | 1986-07-01 |
| 4522660 | Process for ion nitriding of aluminum or an aluminum alloy and apparatus therefor | Hideo Tachikawa, Shigeo Moriyama | 1985-06-11 |
| 4461881 | Process for the production of purified propylene homopolymers or copolymers | Akinobu Shiga, Kiyoshi Matsuyama, Masahiro Kakugo, Yukio Naito | 1984-07-24 |
| 4455344 | Granules with a narrow particle size distribution comprising filler, crystalline polyolefin powder and binder | Kiyoshi Matsuyama, Kenji Ochi, Hiroyuki Ogawa | 1984-06-19 |
| 4195145 | Process for the purification of highly crystalline polyolefins | Akinobu Shiga, Kiyoshi Matsuyama, Masahiro Kakugo | 1980-03-25 |
| 4182852 | Process for refining a homopolymer of copolymer of propylene | Akinobu Shiga, Kiyoshi Matsuyama, Masahiro Kakugo | 1980-01-08 |