Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6604816 | Ink-jet recording head and ink-jet recorder | Seiji Yonekura, Yoshinobu Fukano, Mamoru Okano, Kazuhito Masuda | 2003-08-12 |
| 6557981 | Ink jet recorder | Yoshinobu Fukano, Seiji Yonekura, Mamoru Okano, Kazuhito Masuda | 2003-05-06 |
| 6443560 | Recording head and inkjet recording device having separately arranged ink chambers and ink discharge unit | Mamoru Okano, Yoshinobu Fukano, Seiji Yonekura, Kazuhito Masuda | 2002-09-03 |
| 5860049 | Developing apparatus and picture image forming apparatus | Takao Kumasaka, Shigetaka Fujiwara, Nobuyoshi Hoshi | 1999-01-12 |
| 5832350 | Developing apparatus and color electrophotographic apparatus using the same | Takao Kumasaka, Kunio Fukuchi, Masayasu Anzai | 1998-11-03 |
| 5574546 | Developing apparatus for an electrophotographic machine | Takao Kumasaka, Yasuo Takuma, Tomio Sugaya, Yasuo Kikuchi | 1996-11-12 |
| 5559578 | Electrostatic recording apparatus with electrified cap and managing system thereof | Takao Umeda, Toru Miyasaka, Osamu Namikawa, Isamu Komatsu, Tetsuya Nagata +1 more | 1996-09-24 |
| 5373351 | Electrostatic recording apparatus and managing system thereof | Takao Umeda, Tetsuya Nagata, Yasuo Takuma | 1994-12-13 |
| 5321477 | Image forming apparatus capable of preventing the winding on the image carrier | Tetuya Nagata, Takao Umeda, Takao Takuma, Masato Miwa | 1994-06-14 |
| 5252954 | Multiplexed driving method for an electrooptical device, and circuit therefor | Tetsuya Nagata, Takao Umeda | 1993-10-12 |
| 5177531 | Electrostatic recorder and electrostatic latent image measuring instrument | Toru Miyasaka, Takao Umeda, Tetsuya Nagata | 1993-01-05 |
| 5095376 | Apparatus and method for driving an optical printer having a liquid crystal optical switch | Takao Umeda, Tetsuya Nagata | 1992-03-10 |
| 4783149 | Time-sharing drive liquid crystal optical switch array and optical printer using this optical switch array | Takao Umeda, Tetsuya Nagata, Yuzuru Simazaki, Yasuro Hori | 1988-11-08 |
| 4769659 | Printer utilizing optical switch elements | Takao Umeda, Kazuya Ooishi, Yasuro Hori | 1988-09-06 |
| 4746196 | Multiplexed driving method for an optical switching element employing ferroelectric liquid crystal | Takao Umeda, Tetsuya Nagata, Yuzuru Simazaki, Yasuro Hori | 1988-05-24 |
| 4712876 | Driving ferroelectric liquid crystal printers via short circuiting | Takao Umeda, Kazuya Ooishi, Yasuro Hori | 1987-12-15 |
| 4591886 | Driving method and apparatus for optical printer with liquid-crystal switching element | Takao Umeda, Kazuya Ooishi, Yasuro Hori, Yoshiharu Nagae, Masato Isogai | 1986-05-27 |
| 4586790 | Display panel having uniaxially-stretched organic polymer film as the substrate | Takao Umeda, Takao Miyashita, Yuzuru Shimazaki, Ken Sasaki, Shigeru Matsuyama | 1986-05-06 |
| 4505546 | Liquid crystal display device | Takao Umeda, Yuzuru Simazaki, Seikichi Tanno, Ken Sasaki, Takao Miyashita | 1985-03-19 |
| 4468543 | Ignition distributor | Masazumi Sone, Yukitsugu Hirota, Takao Miyashita | 1984-08-28 |
| 4362771 | Liquid crystal display element with gap controlling material and process for production thereof | Takao Umeda, Yuzuru Simazaki, Takao Miyashita, Fumio Nakano | 1982-12-07 |
| 4345120 | Distributor | Hiroji Sawada, Hiromitsu Nagae | 1982-08-17 |
| 4219707 | Distributor with coated alkaline earth oxide electrode | Hiroji Sawada | 1980-08-26 |