Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881798 | Thermal optical modulation method and device using alternating current | Satoshi Yuasa, Hirohide Munakata, Yoko Yoshinaga, Yukuo Nishimura | 1989-11-21 |
| 4873178 | Optical recording medium and method for conducting recording on said medium | Yoko Kuwae, Hirohide Munakata, Satoshi Yuasa, Etsuko Sugawa | 1989-10-10 |
| 4832466 | Optical element | Yukuo Nishimura, Satoshi Yuasa, Yoko Yoshinaga, Hirohide Munakata | 1989-05-23 |
| 4818665 | Medium and process for image formation | Hiroshi Matsuda, Hirohide Munakata, Yukuo Nishimura | 1989-04-04 |
| 4804613 | Optical recording medium and optical recording process using such medium | Hiroshi Matsuda, Hirohide Munakata, Yoshinori Tomita, Takashi Hamamoto | 1989-02-14 |
| 4802989 | System for purifying dye | Kunitaka Ozawa, Takashi Hamamoto | 1989-02-07 |
| 4798694 | Method for producing composite materials | Hiroyuki Sugata, Kouhei Nakata, Nobutoshi Mizusawa, Satoshi Yuasa, Takashi Hamamoto +1 more | 1989-01-17 |
| 4796981 | Optical element for modulation of light by heating a monomolecular film | Yukuo Nishimura, Yutaka Hirai, Kunihiro Sakai, Hiroshi Matsuda | 1989-01-10 |