Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6706183 | Filter | Takashi Arai, Yoshiichi Koguchi | 2004-03-16 |
| 6647587 | Vacuum cleaner using centrifugal force dust collection to prevent filter blinding | Naoyuki Ohara, Saburo Kajikawa, Tomonori Kato, Hiroshi Mori, Shin Yoshida | 2003-11-18 |
| 6582599 | Filter | Takashi Arai, Hideo Kamo | 2003-06-24 |
| 6266913 | Intra-line fishing rod with fishing line guide members | Masaru Akiba, Shuichi Kimura, Tomoyoshi Tsurufuji | 2001-07-31 |
| 5330813 | Patch for preventing carburization, nitriding or oxidation, and method of preventing carburization, nitriding or oxidation | Kouichi Hirooka, Susumu Tanabe | 1994-07-19 |
| 4986598 | Wind deflector for a sunroof | Takatsugu Yamauchi | 1991-01-22 |