Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6459416 | Multi-gray level display apparatus and method of displaying an image at many gray levels | Itsuo Sasaki, Hirofumi Kato, Isao Arita, Toshio Yanagisawa, Kazuyoshi Yamamoto +2 more | 2002-10-01 |
| 6046626 | Voltage transfer circuit and a booster circuit, and an IC card comprising the same | Yukihiro Saeki | 2000-04-04 |
| 6020869 | Multi-gray level display apparatus and method of displaying an image at many gray levels | Itsuo Sasaki, Hirofumi Kato, Isao Arita, Toshio Yanagisawa, Kazuyoshi Yamamoto +2 more | 2000-02-01 |
| 5719649 | Light guide and liquid crystal display device using it | Yasuo Shono, Yoshinori Higuchi, Naoto Ide | 1998-02-17 |
| 5237201 | TAB type semiconductor device and method of manufacturing the same | Toru Tanaki | 1993-08-17 |
| 5058063 | Nonvolatile semiconductor memory device incorporating level shifting circuits | Yukio Wada, Tadashi Maruyama | 1991-10-15 |
| 5027012 | Programmable logic circuit using wired-or tristate gates | Yukihiro Saeki | 1991-06-25 |
| 5017994 | Semiconductor circuit | Hideharu Egawa | 1991-05-21 |
| 4988894 | Power supply switching circuit | Akira Takiba, Hiroyoshi Murata, Isao Abe | 1991-01-29 |
| 4975757 | Complementary semiconductor device | Hideharu Egawa, Koji Matsuki | 1990-12-04 |
| 4930105 | Nonvolatile semiconductor memory device with a double gate structure | Osamu Matsumoto, Tadashi Maruyama, Hiroyoshi Murata, Isao Abe, Tomohisa Shigematsu +2 more | 1990-05-29 |
| 4912749 | Nonvolatile semiconductor memory | Tadashi Maruyama, Yukio Wada, Tomohisa Shigematsu, Makoto Yoshizawa | 1990-03-27 |
| 4883986 | High density semiconductor circuit using CMOS transistors | Hideharu Egawa | 1989-11-28 |
| 4870615 | Nonvolatile floating gate semiconductor memory device | Tadashi Maruyama, Yukio Wada, Tomohisa Shigematsu, Makoto Yoshizawa | 1989-09-26 |
| 4558234 | Complementary MOSFET logic circuit | Kenji Matsuo | 1985-12-10 |
| 4546327 | Analog signal power amplifier circuit | Itsuo Sasaki, Shouji Abou | 1985-10-08 |
| 4529897 | Analog switch device having threshold change reducing means | Kenji Matsuo, Akira Yamaguchi | 1985-07-16 |
| 4464587 | Complementary IGFET Schmitt trigger logic circuit having a variable bias voltage logic gate section | Kenji Matsuo | 1984-08-07 |
| 4439697 | Sense amplifier circuit | Hiroaki Suzuki, Yukihiro Saeki | 1984-03-27 |
| 4414515 | CR Oscillator having constant current charging source | Kenji Matsuo | 1983-11-08 |
| 4404663 | Integrated circuit | Yukihiro Saeki, Fuminari Tanaka | 1983-09-13 |
| 4389582 | MOS Integrated logic circuit device with improved switching speed characteristics | Kenji Matsuo | 1983-06-21 |
| 4364028 | Integrating analog to digital converter having offset error compensation | Eiji Masuda | 1982-12-14 |
| 4356411 | Flip-flop circuit | Minoru Takada | 1982-10-26 |
| 4318117 | MOS Integrated circuit | Minoru Takada, Yasushi Satoh, Hiroshi Osanai | 1982-03-02 |