Issued Patents 2004
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6830438 | Hybrid compressor | Shigeki Iwanami, Yoshiki Tada | 2004-12-14 |
| 6812643 | Fluorescent luminous tube | Hiroaki Kawasaki, Yoshihisa Yonezawa, Katsumi Takayama | 2004-11-02 |
| 6798149 | Fluorescent luminous tube and method for producing same | Yoshihisa Yonezawa, Hiroyuki Suzuki, Katsutoshi Iida | 2004-09-28 |
| 6717350 | Electron tube and method of manufacturing the same | Yoshihisa Yonezawa, Yasuhiro Nohara, Hiroaki Kawasaki | 2004-04-06 |
| 6710536 | Display device using filament | Yoshihisa Yonezawa, Kazuyoshi Ishikawa, Katsutoshi Kogo, Satoshi Yoshimura | 2004-03-23 |
| 6686693 | Organic electroluminescent device with disjointed electrodes arranged in groups | — | 2004-02-03 |
| 6675596 | Compressor driven selectively by first and second drive sources | Shigeki Iwanami, Yasuhiko Niimi, Takashi Inoue | 2004-01-13 |