Issued Patents All Time
Showing 51–75 of 86 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618424 | Optical pickup device | Yoichi Tsuchiya | 2003-09-09 |
| 6574182 | Optical pickup compatible with a plurality of types of optical disks having different thicknesses | Seiji Kajiyama, Yasuyuki Kanou, Yoichi Tsuchiya | 2003-06-03 |
| 6552990 | Optical head for two different disk thicknesses with a light beam diameter control device | Seiji Kajiyama, Yoichi Tsuchiya, Yasuyuki Kanou, Shuichi Ichiura | 2003-04-22 |
| 6479312 | Gallium phosphide luminescent device | Susumu Higuchi, Kousei Yumoto, Makoto Kawasaki, Ken Aihara | 2002-11-12 |
| 6338620 | Tire-vulcanizing machine | Nobuhiko Irie | 2002-01-15 |
| 6297484 | Magnetic heater | Masayoshi Usui, Hiroshi Inoue, Kazunori Takikawa | 2001-10-02 |
| 6181668 | Optical pickup device and wavelength selective diffraction grating | Seiji Kajiyama, Yasuyuki Kanou, Yoichi Tsuchiya, Shuichi Ichiura | 2001-01-30 |
| 5985023 | Method for growth of a nitrogen-doped gallium phosphide epitaxial layer | Susumu Higuchi, Munehisa Yanagisawa | 1999-11-16 |
| 5808324 | Light emitting device | Makoto Kawasaki | 1998-09-15 |
| 5731209 | Method for the determination of nitrogen concentration in compound semiconductor | Munehisa Yanagisawa, Susumu Higuchi | 1998-03-24 |
| 5585305 | Method for fabricating a semiconductor device | Takao Takenaka | 1996-12-17 |
| 5532051 | Steel sheet excellent in coating sharpness, defect-formation resistance and workability | Tetsuya Nishiura, Motofumi Kurahashi, Masanori Takemoto, Hiroyuki Kawano, Motohiro Nakayama | 1996-07-02 |
| D364346 | Wrapping for audio cassette tape box | — | 1995-11-21 |
| 5459106 | Method for manufacturing a semiconductor light emitting device | Tadashi Sakurai | 1995-10-17 |
| 5440384 | Methods of inspecting wafers for manufacturing light emitting elements | Makoto Kawasaki, Yutaka Tamura | 1995-08-08 |
| 5401684 | Method of manufacturing a light-emitting semiconductor device substrate | Takao Takenaka, Shinji Orimo | 1995-03-28 |
| 5366552 | Apparatus for liquid-phase epitaxial growth | Takao Takenaka, Masahisa Endo | 1994-11-22 |
| 5362683 | Method of making epitaxial wafers | Takao Takenaka, Masahisa Endo | 1994-11-08 |
| 5323027 | Light emitting device with double heterostructure | Takao Takenaka | 1994-06-21 |
| 5291253 | Corona deterioration and moisture compensation for transfer unit in an electrophotographic apparatus | Takao Kumasaka, Yuzuru Simazaki, Yasuo Takuma, Nobuyoshi Hoshi | 1994-03-01 |
| RE34507 | Radiation clinical thermometer | Shunji Egawa | 1994-01-11 |
| 5254172 | Rotating furnace tube having a non-rotating slidable work holder for processing semiconductor substrates | Toshio Otaki, Hitoshi Ikeda, Takao Takenaka | 1993-10-19 |
| 5232284 | Radiation clinical thermometer | Shunji Egawa | 1993-08-03 |
| 5182605 | Xerographic printing machine with an improved transfer unit | Junji Shirakawa, Kazuo Uno | 1993-01-26 |
| 5179412 | Transfer unit for xerographic printing machine with constant ventilating interior | Junji Shirakawa, Kazuo Uno, Kimio Nakamura | 1993-01-12 |