Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8643944 | Infrared zooming lens | — | 2014-02-04 |
| 8264785 | Imaging lens | Takahiro Mitsuhashi | 2012-09-11 |
| 7830935 | Laser | Eiji Kobayashi, Satoshi Kagiwada | 2010-11-09 |
| 7586969 | Method for discriminating anomaly in gas composition and discharge excitation type gas laser oscillator | Akira Egawa, Hajime Ikemoto | 2009-09-08 |
| 7436872 | High frequency discharge excited gas laser oscillator | Akira Egawa, Hajime Ikemoto | 2008-10-14 |
| 7348517 | Laser cutting apparatus with a high quality laser beam | Akira Egawa, Atsushi Mori | 2008-03-25 |
| 7257136 | Laser apparatus | Atsushi Mori, Ryoma Okazaki | 2007-08-14 |
| 7172483 | Method of making metallic shell for spark plug, method of making spark plug having metallic shell and spark plug produced by the same | Takaaki Mizoguchi, Akira Suzuki | 2007-02-06 |
| 7154925 | Gas laser oscillator | Akira Egawa | 2006-12-26 |
| 7149237 | Laser oscillator | Akira Egawa, Takeshi Watanabe | 2006-12-12 |
| 7013696 | Method of making a flanged tubular metallic part | Shigahisa Saida | 2006-03-21 |
| D468712 | Hard disc video recorder | — | 2003-01-14 |
| 5962957 | Spark plug for internal combustion engine | Yutaka Tanaka, Mitsutaka Yoshida | 1999-10-05 |
| 5815945 | Pit membrane-broken wood drying method and apparatus | — | 1998-10-06 |
| 5760533 | Spark plug for an internal combustion engine | Yoshiaki Saiki, Mitsutaka Yoshida | 1998-06-02 |
| 5257308 | Pair facsimile devices | Michiyoshi Washio | 1993-10-26 |
| 5210457 | Outer electrode for spark plug and a method of manufacturing thereof | Takafumi Oshima | 1993-05-11 |
| 5128986 | Pair facsimile devices | Michiyoshi Washio | 1992-07-07 |
| 4882925 | Method of making terminal nut for ignition plug by plastic working | Tsugumi Ichie | 1989-11-28 |