Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6269552 | Method of drying substrates and drying apparatus | Yoshiyuki Honda, Akira Koguchi | 2001-08-07 |
| 5973081 | Modified polyacetal and method of producing the same | Hiroyuki Kanai, Hajime Serizawa, Katsuhei Ohnishi, Kaoru Yamamoto | 1999-10-26 |
| 5866670 | Process for preparing polyacetal copolymer | Akira Nakai, Kaoru Yamamoto, Hiroyuki Kanai | 1999-02-02 |
| 5726276 | Process for preparing polyacetal copolymer | Akira Nakai, Kaoru Yamamoto | 1998-03-10 |
| 5252508 | Apparatus and method for the fabrication of semiconductor circuits | — | 1993-10-12 |
| 5013942 | Clock supply circuit having adjustment capacitance | Akira Nishimura, Hiroyuki Watanabe | 1991-05-07 |
| 4893031 | Logical circuits for performing logical functions without a power supply | — | 1990-01-09 |
| 4841567 | Memory device | Yasuhiko Fujita, Terufumi Takasaki | 1989-06-20 |
| 4786824 | Input signal level detecting circuit | — | 1988-11-22 |
| 4665381 | Digital-to-analog converter | Yasuhiko Fujita | 1987-05-12 |
| 4656429 | Voltage comparison circuit with ripple component elimination | Kenji Matsuo | 1987-04-07 |
| 4639554 | Dual-tone multiple-frequency-signal generating apparatus | Yasuhiko Fujita | 1987-01-27 |
| 4638303 | Digital-analog converter | Shigemi Sakamoto | 1987-01-20 |
| 4633101 | Semiconductor sample and hold switching circuit | Kenji Matsuo | 1986-12-30 |
| 4600916 | Parallel analog-to-digital converter circuit | Kenji Matsuo, Yasuhiko Fujita | 1986-07-15 |
| 4591801 | Differential amplifier circuit | Akira Yamaguchi | 1986-05-27 |
| 4560890 | Autozeroed comparator | Kenji Matsuo, Yasuhiko Fujita | 1985-12-24 |
| 4539551 | Differential voltage amplifier | Yasuhiko Fujita | 1985-09-03 |
| 4524327 | Operational amplifier | Kenji Matsuo | 1985-06-18 |
| 4518880 | MOS Switch circuit with consistent low on resistance | Kenji Matsuo | 1985-05-21 |
| 4511814 | Semiconductor analog switch circuit with compensation means to minimize offset of output voltage | Kenji Matsuo | 1985-04-16 |
| 4376918 | Overtone crystal oscillating circuit | Shigemi Sakamoto | 1983-03-15 |
| 4364028 | Integrating analog to digital converter having offset error compensation | Yasoji Suzuki | 1982-12-14 |
| 4356450 | Offset compensating circuit for operational amplifier | — | 1982-10-26 |
| 4352092 | Digital to analog converter | Hiroshi Kawasaki | 1982-09-28 |