Issued Patents All Time
Showing 51–72 of 72 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5658699 | Information recording medium and method of recording and reproducing electrostatic information | Masato Okabe | 1997-08-19 |
| 5635971 | Recording medium including latent image charge trap and methods involving same | Takashi Aono, Yoshiaki Tsuruoka, Kayoko Sugiyama | 1997-06-03 |
| 5607808 | Liquid toner, ink composition, and methods of producing the same | Masumi Nishizawa, Takashi Miyama | 1997-03-04 |
| 5587264 | Electrostatic information recording medium and electrostatic information recording and reproducing method | Kyoji Dantani, Hiroyuki Obata, Makoto Matsuo, Minoru Utsumi, Seiji Take | 1996-12-24 |
| 5583670 | Polymer dispersed liquid crystal information recording medium with information recording layer comprising acrylic or methacrylic resin having molecular weight of 25,000 to 100,000 and information recording and reproducing method | Yuichi Nakayasu | 1996-12-10 |
| 5571646 | Electrostatic information-recording media and process for recording and reproducing electrostatic information | Minoru Utsumi, Hiroyuki Obata, Seiji Take, Hironori Kamiyama | 1996-11-05 |
| 5547804 | Liquid toner, ink composition, and methods of producing the same | Masumi Nishizawa, Takashi Miyama | 1996-08-20 |
| 5541542 | Halftone image device and its driving circuit | Akira Shibuya, Hiroyuki Kadowaki, Tomohiro Shinbo | 1996-07-30 |
| 5527589 | Electrostatic information recording medium | Osamu Shimizu, Yuichi Nakayasu, Yoshiaki Tsuruoka, Kayoko Sugiyama | 1996-06-18 |
| 5521040 | Frost image recording medium and method of and apparatus for forming and reading frost image | Hiroyuki Obata, Minoru Utsumi, Masato Okabe, Hironori Kamiyama | 1996-05-28 |
| 5516607 | Information recording medium and method of recording and reproducing electrostatic information | Masato Okabe | 1996-05-14 |
| 5514504 | Information recording medium, and information recording a reproducing method | Seiji Take, Hironori Kamiyama, Masato Okabe, Hiroyuki Obata, Minoru Utsumi | 1996-05-07 |
| 5497179 | Charge carrier medium and reproduction of electrostatic latent image | Takashi Aono, Kayoko Sugiyama | 1996-03-05 |
| 5492783 | Electrostatic information-recording media and process for recording and reproducing electrostatic information | Minoru Utsumi, Hiroyuki Obata, Seiji Take, Hironori Kamiyama | 1996-02-20 |
| 5477313 | Liquid development and transfer apparatus for electrostatic latent image | Satoru Kuramochi | 1995-12-19 |
| 5439768 | Electrostatic information recording medium and electrostatic information recording and reproducing method | Makoto Matsuo, Minoru Utsumi, Yukio Taniguchi, Hiroyuki Obata, Seiji Take | 1995-08-08 |
| 5418096 | Information recording medium and method of recording and reproducing electrostatic information | Masato Okabe | 1995-05-23 |
| 5378565 | Frost image recording medium and method of and apparatus for forming and reading frost image | Hiroyuki Obata, Minoru Utsumi, Masato Okabe, Hironori Kamiyama | 1995-01-03 |
| 5376955 | Electrostatic charge information reproducing method with charge transfer by electrostatic discharge | Masato Okabe, Takashi Aono | 1994-12-27 |
| 5298947 | Process for recording images on an electrostatic information recording medium with delayed disconnection of charge accumulation voltage | Takashi Aono, Minoru Utsumi, Hiroyuki Obata, Kohji Ichimura | 1994-03-29 |
| 5297132 | Draw type optical recording medium | Atsushi Takano, Kazuo Umeda, Kazuo Takahashi, Osamu Sasaki, Hitoshi Fujii +2 more | 1994-03-22 |
| 4624867 | Process for forming a synthetic resin film on a substrate and apparatus therefor | Yoshikazu Takahashi | 1986-11-25 |