Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7615094 | Tungsten-based sintered material having high strength and high hardness, and hot press mold used for optical glass lenses | Ji-bin Yang | 2009-11-10 |
| 6382942 | Internal gear oil pump made of aluminum alloys | Masahisa Miyahara, Makoto Yoshida, Haruo Okamoto, Akira Fujiki, Hiroyuki Nishiyama +1 more | 2002-05-07 |
| 6074497 | Highly wear-resistant aluminum-based composite alloy and wear-resistant parts | Akihisa Inoue, Masahiro Oguchi, Junichi Nagahora, Toru Kohno, Shin Takeda +1 more | 2000-06-13 |
| 6033787 | Ceramic circuit board with heat sink | Toshiyuki Nagase, Yoshirou Kuromitsu, Kunio Sugamura, Yoshio Kanda, Masafumi Hatsushika | 2000-03-07 |
| 5114468 | Cu-base sintered alloy | Hidetoshi Akutsu, Tohru Kohno | 1992-05-19 |