Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6242862 | Photocatalyzer and lamp or lighting fixture having a photocatalyzer | — | 2001-06-05 |
| 5719468 | Incandescent lamp | Hiroyoshi Takanishi, Kazunari Fukue, Tsutomu Watanabe, Hiroshi Kamata | 1998-02-17 |
| 5146130 | Incandescent lamp having good color rendering properties at a high color temperature | — | 1992-09-08 |
| 5142197 | Light interference film and lamp | — | 1992-08-25 |
| 5113109 | Optical interference film and lamp having the same | Akiko Saito, Yoji Yuge | 1992-05-12 |
| 5000528 | Scratch resistant optical interference film | — | 1991-03-19 |
| 4998038 | Pitted light diffusive coating, a method of forming the coating and a lamp having the coating | Tsutomu Watanabe, Makoto Bessho | 1991-03-05 |
| 4983001 | Optical interference film having high and low refractive index layers inter-layer connection of which is strengthened | Akiko Hagiuda | 1991-01-08 |
| 4946798 | Semiconductor integrated circuit fabrication method | — | 1990-08-07 |
| 4873200 | Method of fabricating a bipolar transistor | — | 1989-10-10 |
| 4869927 | Light diffusive coating, a method of forming the coating and a lamp having the coating | Toshio Karino, Yooji Yuge | 1989-09-26 |
| 4850661 | Reflection mirror for reflecting visible rays and for transmitting infrared rays from light source | — | 1989-07-25 |
| 4735912 | Process of fabricating a semiconductor IC device | — | 1988-04-05 |
| 4731341 | Method of fabricating bipolar semiconductor integrated circuit device | — | 1988-03-15 |
| 4721877 | Light diffusive coating and a lamp having the coating | Toshio Karino, Yooji Yuge | 1988-01-26 |
| 4701663 | Lamp having interference film | Yooji Yuge, Noriyuki Hayama, Tokuyoshi Saito, Umio Maeda | 1987-10-20 |
| 4652789 | Incandescent lamp with bulb having IR reflecting film | Tsutomu Watanabe, Yoji Yuge | 1987-03-24 |
| 4582565 | Method of manufacturing integrated semiconductor circuit devices | — | 1986-04-15 |
| 4566471 | Cutting apparatus | Takeo Kumasako, Kiyomi Sato, Akinori Sato, Isamu Mamiya | 1986-01-28 |
| 4524410 | Incandescent lamp with film of alternately stacked layers | Fumio Yamamoto | 1985-06-18 |