Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7031166 | Silicon nitride powder, silicon nitride sintered body, sintered silicon nitride substrate, and circuit board and thermoelectric module comprising such sintered silicon nitride substrate | Hisayuki Imamura, Shigeyuki Hamayoshi, Tsunehiro Kawata | 2006-04-18 |
| 6846765 | Silicon nitride powder, silicon nitride sintered body, sintered silicon nitride substrate, and circuit board and thermoelectric module comprising such sintered silicon nitride substrate | Hisayuki Imamura, Shigeyuki Hamayoshi, Tsunehiro Kawata | 2005-01-25 |
| 5403674 | Conductive material and process for preparing the same | Yoshiyuki Yasutomi, Tadahiko Miyoshi, Nobuyuki Yamashita, Hiroshi Nagase, Kiyohiko Tanno +2 more | 1995-04-04 |
| 5378417 | Process for producing ceramic compositions | Yoshiyuki Yasutomi, Kousuke Nakamura, Hideki Kita | 1995-01-03 |
| 5316987 | Ceramic composite and process for production thereof | Yoshiyuki Yasutomi, Kousuke Nakamura, Hideki Kita | 1994-05-31 |
| 5271871 | Conductive material and process for preparing the same | Yoshiyuki Yasutomi, Tadahiko Miyoshi, Nobuyuki Yamashita, Hiroshi Nagase, Kiyohiko Tanno +2 more | 1993-12-21 |
| 5266860 | Commutator | Akio Chiba, Kazuo Tahara, Nobuyuki Yamashita, Shun Suzuki | 1993-11-30 |
| 5252273 | Slip casting method | Junji Sakai, Yoshiyuki Yasutomi | 1993-10-12 |
| 5208502 | Sliding current collector made of ceramics | Nobuyuki Yamashita, Kazuo Tahara, Akio Chiba, Toshimi Abukawa, Shin'ichi Sakamoto +1 more | 1993-05-04 |
| 5200373 | High strength composite ceramic structure and process for producing the same | Yoshiyuki Yasutomi, Seiji Watahiki, Junji Sakai, Akio Chiba, Tadahiko Miyoshi | 1993-04-06 |
| 5138221 | Inorganically insulated heater, and cathode ray tube and air flow sensor using the same | Toshiaki Arato, Toshiaki Narisawa, Nobuyuki Koganezawa | 1992-08-11 |
| 5130055 | Ceramic composite and process for the production thereof | Yoshiyuki Yasutomi, Kousuke Nakamura, Hideki Kita | 1992-07-14 |
| 5085806 | Conductive material and process for preparing the same | Yoshiyuki Yasutomi, Tadahiko Miyoshi, Nobuyuki Yamashita, Hiroshi Nagase, Kiyohiko Tanno +2 more | 1992-02-04 |
| 4941251 | Rollers for rolling mills | Sensuke Okada, Kimihiko Akahori, Keiichi Kuniya, Toshimi Sasaki, Toshiyuki Kajiwara +2 more | 1990-07-17 |
| 4839949 | Rollers for rolling mills | Sensuke Okada, Kimihiko Akahori, Keiichi Kuniya, Toshimi Sasaki, Toshiyuki Kajiwara +2 more | 1989-06-20 |