Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6327563 | Wireless microphone system | — | 2001-12-04 |
| 5965802 | NO.sub.x sensor for exhaust gas, and process for producing the same | Masaaki Nanaumi, Hiroshi Takeshita, Norihiro Ohta, Noriko OHTA, Yoshikazu Fujisawa +1 more | 1999-10-12 |
| 5800783 | NOx sensor for exhaust gas and method for producing same | Masaaki Nanaumi, Norihiro Ohta, Youichi Asano, Yoshikazu Fujisawa | 1998-09-01 |
| 5252761 | Silicone-dissolving and solubilizing agents | Tadashiro Hirose, Yoshihiro Ueda | 1993-10-12 |
| 5190722 | High cold-forging electromagnetic stainless steel | Yoshinobu Saito, Makoto Tabei, Yasuhide Ouchi, Jun Takizawa, Hitoshi Itami | 1993-03-02 |
| 4871512 | Alloys for exhaust valve | Susumu Isobe, Kenkichi Matsunaga | 1989-10-03 |
| 4702771 | Wear-resistant, sintered iron alloy and process for producing the same | Yoshihiro Katsui, Hiroyuki Endo, Yutaka Ikenoue | 1987-10-27 |
| 4631169 | Alloys for exhaust valves | Susumu Isobe, Kenkichi Matsunaga, Norikatsu Sato | 1986-12-23 |
| 4505988 | Sintered alloy for valve seat | Shigeru Urano, Kiyoshi Yamamoto, Takeshi Sugawara | 1985-03-19 |
| 4454329 | Process for preparation of tocopherol concentrates | Yoshinori Kai | 1984-06-12 |
| 4424953 | Dual-layer sintered valve seat ring | Takeshi Sugawara, Setsuo Nii, Takayuki Matsuda | 1984-01-10 |