Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8130253 | Composite semiconductor device, print head and image forming apparatus | Kazuya Ohkawa, Shinya JYUMONJI, Hiroshi Hamano, Masumi Koizumi | 2012-03-06 |
| 7847304 | LED array, LED head and image recording apparatus | Masumi Koizumi, Hiroshi Hamano | 2010-12-07 |
| 7754512 | Method of fabricating semiconductor light-emitting devices with isolation trenches | Hiroyuki Fujiwara, Susumu Ozawa, Masaharu Nobori | 2010-07-13 |
| 6909122 | Semiconductor light-emitting device with isolation trenches, and method of fabricating same | Hiroyuki Fujiwara, Susumu Ozawa, Masaharu Nobori | 2005-06-21 |
| 6858875 | Light-emitting-element array | Hiroshi Hamano, Masaharu Nobori, Masumi Koizumi | 2005-02-22 |
| 6781246 | Semiconductor array device with single interconnection layer | Hiroyuki Fujiwara, Susumu Ozawa, Masumi Koizumi | 2004-08-24 |
| 6765235 | Array of semiconductor elements with paired driving scheme | Hiroyuki Fujiwara, Hiroshi Hamano, Masaharu Nobori | 2004-07-20 |
| 6762437 | Light emitting semiconductor device | Mitsuhiko Ogihara, Hiroshi Hamano | 2004-07-13 |
| 6717184 | Light-emitting element array having an element separating region | Masaharu Nobori, Mitsuhiko Ogihara | 2004-04-06 |
| 6621105 | Array of light-emitting elements with multilayer wiring | Mitsuhiko Ogihara | 2003-09-16 |
| 6583446 | Array of light-emitting elements and emission-altering elements | Hiroaki Kikuchi, Mitsuhiko Ogihara, Hiroshi Hamano | 2003-06-24 |
| 6563138 | Low-cost, high-density light-emitting-diode array and fabrication method thereof | Mitsuhiko Ogihara, Kazuo Tokura, Yukio Nakamura, Takatoku Shimizu | 2003-05-13 |
| 6407410 | Semiconductor optical device | Mitsuhiko Ogihara, Yukio Nakamura, Hiroshi Hamano | 2002-06-18 |
| 6388696 | Led array, and led printer head | Mitsuhiko Ogihara, Hiroshi Hamano, Takatoku Shimizu | 2002-05-14 |
| 6384429 | Light-emitting semiconductor device with reduced obstructions to light emission | Mitsuhiko Ogihara, Yukio Nakamura, Hiroshi Hamano | 2002-05-07 |
| 6313483 | Light-emitting semiconductor device with reduced nonradiative recombination | Mitsuhiko Ogihara, Hiroshi Hamano | 2001-11-06 |
| 6271051 | Light-emitting diode, light-emitting diode array, and method of their fabrication | Mitsuhiko Ogihara, Yukio Nakamura, Hiroshi Hamano | 2001-08-07 |
| 6222208 | Light-emitting diode and light-emitting diode array | Mitsuhiko Ogihara, Yukio Nakamura, Takatoku Shimizu | 2001-04-24 |
| 6211537 | LED array | Takatoku Shimizu, Mitsuhiko Ogihara, Hiroshi Hamano | 2001-04-03 |
| 6190935 | Low-cost, high-density light-emitting-diode array and fabrication method thereof | Mitsuhiko Ogihara, Kazuo Tokura, Yukio Nakamura, Takatoku Shimizu | 2001-02-20 |
| 6180961 | Light emitting semiconductor device with stacked structure | Mitsuhiko Ogihara, Yukio Nakamura, Takatoku Shimizu | 2001-01-30 |
| 6172701 | Light emitting element array chip, light emitting element array drive IC and print head | Kazuo Tokura, Yukio Nakamura, Mitsuhiko Ogihara | 2001-01-09 |
| 6163036 | Light emitting element module with a parallelogram-shaped chip and a staggered chip array | Mitsuhiko Ogihara, Takatoku Shimizu | 2000-12-19 |
| 6144043 | Light emitting semiconductor device having plural light emitting elements with different junction depth | Mitsuhiko Ogihara, Yukio Nakamura, Hiroshi Hamano | 2000-11-07 |
| 6136627 | High-resolution light-sensing and light-emitting diode array and fabrication method thereof | Mitsuhiko Ogihara, Yukio Nakamura, Takatoku Shimizu | 2000-10-24 |