Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5148298 | Spatial light modulator | Masanobu Shigeta, Nozomu Ohkouchi, Hiromitsu Takenaka, Toshio Konno | 1992-09-15 |
| 5132814 | Liquid crystal spatial light modulator with multilayer photoconductor | Nozomu Ohkouchi, Hiromitsu Takenaka, Toshio Konno | 1992-07-21 |
| 4987129 | Cephalosporin derivatives | Hiroyuki Takano | 1991-01-22 |
| 4966900 | Cephalosporin .beta.-lactam compound and medicinal composition | Hiroyuki Takano | 1990-10-30 |
| 4958019 | Intermediates for synthesis of cephalosporin compounds | Hiroyuki Takano | 1990-09-18 |
| 4956462 | """Triazolo-pyrimidine intermediates""" | Hiroyuki Takano | 1990-09-11 |
| 4808711 | Cephalosporin derivatives | Hiroyuki Takano, Fujio Yagihashi | 1989-02-28 |
| 4758295 | Method of stopping leakage of water in concrete structure | Minoru Sawaide, Hiroshi Miura, Humiharu Machi | 1988-07-19 |
| 4698251 | Magnetic recording medium and method of producing the same | Yasutaka Fukuda, Atsushi Nakano | 1987-10-06 |
| 4598110 | Resin composition containing granular or powdery phenol-aldehyde resin | Hiroaki Koyama | 1986-07-01 |
| 4596845 | Resin composition containing granular or powdery phenol-aldehyde resin | Hiroaki Koyama | 1986-06-24 |
| 4587178 | Magnetic recording medium | Toshio Kato, Hitoshi Oda, Masanobu Shigeta | 1986-05-06 |
| 4558089 | Resin composition containing granular or powdery phenol-aldehyde resin | Hiroaki Koyama | 1985-12-10 |
| 4517257 | Recording media comprising vertical magnetization layers essentially consisting of quaternary Co--Ni--Zn--P alloys | Toshio Kato | 1985-05-14 |
| 4476277 | Resin composition containing granular or powdery phenol-aldehyde resin | Hiroaki Koyama | 1984-10-09 |
| 4466932 | Process for producing carbon articles | Hiroaki Koyama | 1984-08-21 |
| 4460730 | Composition containing a powder of an inorganic material | Hiroaki Koyama | 1984-07-17 |
| 4454298 | Granular or powdery phenol-aldehyde resin and process for production thereof | Hiroaki Koyama | 1984-06-12 |
| 4436904 | Cephalosporins | Hiroyuki Takano, Shoji Yoshimura, Kinji Takada | 1984-03-13 |
| 4414378 | Granular or powdery phenol-formaldehyde resin and process for production thereof | Hiroaki Koyama | 1983-11-08 |
| 4414379 | Granular or powdery nitrogen-containing phenol-aldehyde copolymer resin and process for production thereof | Hiroaki Koyama | 1983-11-08 |
| 4316969 | Cured novolak fiber-reinforced, chlorinated rubber molded articles having excellent flame-proofness, and process for the preparation thereof | Hiroaki Koyama, Mituru Sekiya | 1982-02-23 |