Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5410612 | Apparatus and method for recognizing characters | Tsunekazu Arai, Shigeru Mizuhara, Kazutoshi Shimada, Kiyoshi Kaneko, Katsuyuki Kobayashi +1 more | 1995-04-25 |
| 5382497 | Optical recording medium and process for recording thereupon | Kazuharu Katagiri, Yoshio Takasu | 1995-01-17 |
| 5320930 | Optical recording medium and process for recording thereon | Kazuharu Katagiri, Yoshio Takasu | 1994-06-14 |
| 5278026 | Optical recording medium and process for recording thereupon | Kazuharu Katagiri, Yoshio Takasu | 1994-01-11 |
| 5248584 | Optical card and method for reading information recorded in it | Kyo Miura, Hisaaki Kawade, Keiko Ikoma, Masashi Miyagawa, Mizuho Hiraoka +2 more | 1993-09-28 |
| 5246814 | Process for recording on optical recording medium | Kazuharu Katagiri, Toshio Takasu | 1993-09-21 |
| 5245030 | IR-ray absorptive amino compound and optical recording medium by use thereof | Tetsuro Fukui, Hiroyuki Sugata, Kyo Miura | 1993-09-14 |
| 5108873 | IR-ray absorptive compound and optical recording medium by use thereof | Tetsuro Fukui, Hiroyuki Sugata, Kyo Miura | 1992-04-28 |
| 5079127 | Optical recording medium and process for recording thereupon | Kazuharu Katagiri, Yoshio Takasu | 1992-01-07 |
| 5079128 | Optical recording medium and process for recording thereupon | Kazuharu Katagiri, Yoshio Takasu | 1992-01-07 |
| 4957854 | Optical recording medium | Yoshio Takasu, Kyo Miura | 1990-09-18 |
| 4944981 | Optical recording medium | Tsuyoshi Santoh | 1990-07-31 |
| 4923390 | Optical recording medium IR-ray absorptive compound and optical recording medium by use thereof | Hiroyuki Sugata, Kyo Miura, Tetsuro Fukui, Yoshio Takasu | 1990-05-08 |
| 4921780 | Optical recording medium | Tsuyoshi Santoh | 1990-05-01 |
| 4898798 | Photosensitive member having a light receiving layer comprising a carbonic film for use in electrophotography | Masao Sugata, Tohru Den, Susumu Ito, Keiji Hirabayashi, Keiko Ikoma +6 more | 1990-02-06 |
| 4892800 | Photosensitive member having a photoconductive layer comprising a carbonic film for use in electrophotography | Masao Sugata, Tatsuo Takeuchi, Hiroshi Satomura, Akio Maruyama, Keishi Saito +6 more | 1990-01-09 |
| 4871601 | Optical information recording carrier | Kyo Miura, Hiroyuki Sugata, Hitoshi Yoshino | 1989-10-03 |
| 4738908 | Photothermal transducing type of recording medium | Kazuharu Katagiri, Yoshio Takasu | 1988-04-19 |
| 4734359 | Thermal recording material for display and image display device utilizing the same | Toshikazu Ohnishi, Yoshio Takasu, Kozo Arahara, Akihiro Mouri, Katsumi Kurematsu +2 more | 1988-03-29 |
| 4693951 | Image forming method and image bearing member | Yoshio Takasu, Kazuharu Katagiri | 1987-09-15 |
| 4673630 | Photoconductive film and electrophotographic photosensitive member contains azulenium salt | Kazuhara Katagiri, Takeshi Ohtake, Kozo Arao, Makoto Kitahara, Yoshio Takasu | 1987-06-16 |
| 4647521 | Image-holding member having top layer of hydrophobic silica | Kazuharu Katagiri | 1987-03-03 |
| 4629670 | Photoconductive film of azulenium salt and electrophotographic photosensitive member | Kazuharu Katagiri, Takeshi Ohtake, Kozo Arao, Yoshio Takasu | 1986-12-16 |
| 4579799 | Photoconductive film electrophotographic photosensitive member therewith | Kazuharu Katagiri, Yoshio Takasu | 1986-04-01 |
| 4565761 | Electrophotographic process utilizing an azulenium salt-containing photosensitive member | Kazuharu Katagiri, Yoshio Takasu | 1986-01-21 |