Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5415964 | Pigment-containing polymer particles, method of production thereof | Kenji Hayashi, Yoshiaki Koizumi, Tomoe Kikuchi | 1995-05-16 |
| 5384501 | Integration circuit including a differential amplifier having a variable transconductance | Hiroshi Tanimoto | 1995-01-24 |
| 5227681 | Integration circuit | Hiroshi Tanimoto | 1993-07-13 |
| 5087421 | Multilayered assay element | Satoshi Kawakatsu, Tomoji Akashi, Kenichiro Okaniwa | 1992-02-11 |
| 5081423 | Integrator and active filter including integrator with simple phase compensation | Hiroshi Tanimoto | 1992-01-14 |
| 5006818 | Linear differential amplifier | Hiroshi Tanimoto | 1991-04-09 |
| 4914020 | Multi-layer analytical element with preserved enzyme containing spreading layer | Kazumi Arai, Morio Kobayashi, Kenichiro Okaniwa, Takasi Momose, Kunihiro Furukawa +1 more | 1990-04-03 |
| 4884036 | Band-pass filter | Hiroshi Tanimoto | 1989-11-28 |
| 4732736 | Analytical element for the detection hydrogen peroxide | Morio Kobayashi, Kenichiro Okaniwa, Kunihiro Furukawa, Soichi Zanma | 1988-03-22 |
| 4709408 | Phased lock loop synchronous detecting system with an automatic frequency tuning circuit | Tetsuro Itakura, Yoshitaka Kasagi, Chikashi Nakagawara | 1987-11-24 |
| 4615983 | Immunological measuring element | — | 1986-10-07 |
| 4613567 | Immunoassay method for measuring immunological antigen in fluid sample | Seikichi Yasoshima, Kenichiro Okaniwa | 1986-09-23 |
| 4594225 | Elements for analysis of calcium | Kazumi Arai, Kenichiro Okaniwa | 1986-06-10 |
| 4594224 | Analytical element | Kenichiro Okaniwa, Shozo Kikugawa | 1986-06-10 |
| 4576793 | Analytical element | Kenichiro Okaniwa, Masakuni Saruhashi | 1986-03-18 |
| 4567136 | Analytical element | Kenichiro Okaniwa, Shozo Kikugawa | 1986-01-28 |
| 4567024 | Analytical element | Kenichiro Okaniwa | 1986-01-28 |
| 4563594 | Schmitt trigger circuit using MOS transistors and having constant threshold voltages | — | 1986-01-07 |
| 4557901 | Analytical element | Kenichiro Okaniwa, Masakuni Saruhashi, Yuko Ohmachi | 1985-12-10 |
| 4551307 | Analytical element | Shozo Kikugawa, Kenichiro Okaniwa | 1985-11-05 |
| 4486537 | Analytical element and method of use | Kenichiro Okaniwa | 1984-12-04 |
| 4430436 | Analytical element and method of use | Shozo Kikugawa, Kenichiro Okaniwa, Kiyoshi Tamaki | 1984-02-07 |
| 4427632 | Analytical element | Kenichiro Okaniwa, Shozo Kikugawa | 1984-01-24 |
| 4407938 | Photographic element with lactone polymer | Noboru Mizukura | 1983-10-04 |
| 4304850 | Photographic element for color diffusion transfer process | Satoru Ikeuchi, Noboru Mizukura, Hideaki Iwama | 1981-12-08 |