Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8149184 | Plasma display device | Hidenao Kubota, Hirofumi Sakamoto, Masahiko Umeda | 2012-04-03 |
| 7515118 | Plasma display device | Hidenao Kubota, Hirofumi Sakamoto, Masahiko Umeda | 2009-04-07 |
| 7113153 | Plasma display device | Hidenao Kubota, Hirofumi Sakamoto, Masahiko Umeda | 2006-09-26 |
| 5669439 | Laminated type heat exchanger | Etsuo Hasegawa, Toshiya Nagasawa, Keiichi Yoshii | 1997-09-23 |
| 5653283 | Laminated type heat exchanger | Keiichi Yoshii, Etsuo Hasegawa, Toshiya Nagasawa | 1997-08-05 |
| 4915163 | Plate type heat exchanger | Ken Matsunaga, Yoshiyuki Yamauchi, Masami Ohshita, Kiyomitsu Tsuchiya | 1990-04-10 |
| 4578124 | High strength low carbon steels, steel articles thereof and method for manufacturing the steels | Toshiaki Yutori, Takehiko Kato, Yasuhiro Hosogi | 1986-03-25 |
| 4501626 | High strength steel plate and method for manufacturing same | Hiromi Hori, Takafusa Iwai, Akinori Ohtomo, Denei Takai | 1985-02-26 |
| 4426235 | Cold-rolled high strength steel plate with composite steel structure of high r-value and method for producing same | Hiromi Hori, Ichiro Tsukatani, Zenichi Shibata | 1984-01-17 |
| 4388122 | Method of making high strength hot rolled steel sheet having excellent flash butt weldability, fatigue characteristic and formability | Shunichi Hashimoto, Shoji Kambe | 1983-06-14 |
| 4331488 | Cold-rolled ultra low carbon steel sheet with improved press-forming properties | Ichiro Tsukatani | 1982-05-25 |
| 4314862 | Dual phase high strength cold-rolled steel plate | Masanori Higashi, Tsuguaki Ohki, Shoji Kanbe | 1982-02-09 |