Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8723418 | Light source device with starting aid | Yosuke Kano, Makoto Ohkahara, Yousuke Ishikawa, Sumio Uehara | 2014-05-13 |
| 8471472 | UV enhancer for discharge lamp and manufacturing method thereof | Yousuke Ishikawa, Hirokazu Harasawa, Kouji Komata | 2013-06-25 |
| 8182305 | Method for manufacturing high pressure discharge lamp | Toshio Yoshizawa, Katsuhiro Okabe, Makoto Ohkahara, Shigeharu Sato, Shinichi Takemasa | 2012-05-22 |
| 7666306 | Adsorbent, method for producing same, and method for processing oil-containing waste water | Sadao Hayata, Takashi Oyama, Akira Ino | 2010-02-23 |
| 5191579 | Ring network switching control device | Akihiro Matsushita, Shinya Takemura, Toshio Watanabe, Shigeo Sakai | 1993-03-02 |
| 4549603 | Heat exchanging device with heat exchanging plates | Mitsuru Shirai, Akira Yamamoto, Hiroshi Tsuji | 1985-10-29 |