Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8203271 | Metal halide lamp including sealed metal foil | Osamu Shirakawa | 2012-06-19 |
| 7253563 | Metal halide lamp | Keisuke Nakazato, Koji Tanabe, Makoto Deguchi | 2007-08-07 |
| D344062 | Auxiliary element for ignition plugs for internal combustion engines for automobiles | Ryohei Kashiwara, Hideaki Kashiwara, Takeaki Kashiwara | 1994-02-08 |
| 5266866 | Low pressure gas discharge lamp | Masami Takagi | 1993-11-30 |
| 5090373 | Auxiliary device attachable to a convention spark plug | Ryohei Kashiwara, Hideaki Kashiwara, Takeaki Kashiwara | 1992-02-25 |
| 5051651 | Ignition plug with a hollow cylindrical ground electrode and an ignition process by the use thereof | Ryohei Kashiwara, Hideaki Kashiwara, Takeaki Kashiwara | 1991-09-24 |
| 5007389 | Ignition plug for internal combustion engines and a process for igniting gas mixture by the use thereof | Ryohei Kashiwara, Hideaki Kashiwara, Takeaki Kashiwara | 1991-04-16 |
| 4983877 | Ignition plug for use in internal combustion engines to cause instantaneous combustion | Ryohei Kashiwara, Hideaki Kashiwara, Takeaki Kashiwara | 1991-01-08 |
| 4901688 | Ignition plug for use in internal combustion engines and an ignition process by the use thereof | Ryohei Kashiwara, Hideaki Kashiwara, Takeaki Kashiwara | 1990-02-20 |