Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7964791 | Chalcopyrite type solar cell | Satoshi Yonezawa | 2011-06-21 |
| 7663056 | Chalcopyrite type solar cell | Satoshi Yonezawa | 2010-02-16 |
| 5792282 | Method of carburizing austenitic stainless steel and austenitic stainless steel products obtained thereby | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1998-08-11 |
| 5593510 | Method of carburizing austenitic metal | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano | 1997-01-14 |
| 5556483 | Method of carburizing austenitic metal | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Teruo Minato | 1996-09-17 |
| 5505791 | Process of producing nitrided and hardened nickel alloy products | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Teruo Minato | 1996-04-09 |
| 5447181 | Loom guide bar blade with its surface nitrided for hardening | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Teruo Minato | 1995-09-05 |
| 5445683 | Nickel alloy products with their surfaces nitrided and hardened | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Teruo Minato | 1995-08-29 |
| 5403409 | Nitrided stainless steel products | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Teruo Minato | 1995-04-04 |
| 5376188 | Method of nitriding austenitic stainless steel products | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Teruo Minato | 1994-12-27 |
| 5252145 | Method of nitriding nickel alloy | Masaaki Tahara, Haruo Senbokuya, Kenzo Kitano, Teruo Minato | 1993-10-12 |
| 5158289 | Golf clubs | Takaharu Okumoto, Tetsuo Hayashi, Toshio Ninomiya | 1992-10-27 |
| 5009423 | Wood golf club and its production method | Takaharu Okumoto, Kazuo Kawada, Tetsuo Hayashi | 1991-04-23 |