Issued Patents All Time
Showing 551–575 of 655 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4957350 | Liquid crystal display device | Masaru Kugo, Michiaki Kurosawa | 1990-09-18 |
| 4954175 | Pigment | Junichi Handa, Yoshio Takagi, Taketoshi Minohara | 1990-09-04 |
| 4954885 | Filter for separating luminance and chrominance signals from composite color television signal | Tadashi Kasezawa, Masaharu Yao | 1990-09-04 |
| 4952131 | Metal mold exchanging apparatus for use in injection molding machines | Kanji Shirai, Kazuharu Maruyama, Hajime Kitamura, Owashi Yutaka | 1990-08-28 |
| 4948692 | Combination toner and printer utilizing same | Koichi Higashimura, Yoshinori Miyazawa, Tsuneo Handa, Teruyuki Mizumoto, Atsushi Uchino +4 more | 1990-08-14 |
| 4946381 | Pulsating combustion system capable of varying combustion power | Kazuo Saito, Ichiro Hongo, Akio Mitani | 1990-08-07 |
| 4944719 | Planetary gear type speed change device having one-way clutch operable in two functions | Tokuyuki Takahashi, Seitoku Kubo | 1990-07-31 |
| 4939910 | Air conditioner | Kenji Umezu, Jitsuo Ikeya | 1990-07-10 |
| 4924305 | Motion detecting circuit for video signal processing using correlation techniques | Isao Nakagawa, Sadao Kubota, Toru Suzaki, Toshimitsu Ozawa, Masaharu Yao +2 more | 1990-05-08 |
| 4922239 | Multi-shade color liquid crystal display apparatus | Masaru Kugo | 1990-05-01 |
| 4917810 | Piezoelectric composite material | Tsutomu Tsunooka, Shigeo Saito, Takashi Yamamoto | 1990-04-17 |
| 4914347 | Hot-cathode discharge fluorescent lamp filled with low pressure rare gas | Takashi Osawa, Katsuo Murakami, Yoshinori Anzai, Takeo Saikatsu, Seishiro Mitsuhashi +2 more | 1990-04-03 |
| 4908298 | Method of creating patterned multilayer films for use in production of semiconductor circuits and systems | George J. Hefferon, Scott A. MacDonald, Carlton G. Willson | 1990-03-13 |
| 4906546 | Electrophotographic sensitive member | Takao Kawamura, Naooki Miyamoto, Hitoshi Takemura, Kazumasa Ohkawa, Kokichi Ishibitsu | 1990-03-06 |
| 4882252 | Electrophotographic sensitive member with amorphous silicon carbide | Takao Kawamura, Naooki Miyamoto, Hitoshi Takemura, Kazumasa Ohkawa, Kokichi Ishibitsu | 1989-11-21 |
| 4875488 | System for measuring the volume of a part of a human body | Hideaki Shimazu, Kenichi Yamakoshi | 1989-10-24 |
| 4870120 | Cement dispersant | Tsuneo Tsubakimoto, Hideyuki Tahara, Hiroya Kobayashi, Tsuyoshi Hirata | 1989-09-26 |
| 4840593 | Low pressure mercury vapor discharge lamp and preparation thereof | Takao Takeda, Hitoshi Yamazaki, Yoshiteru Taniguchi, Norihiko Tanaka, Minoru Uchida +1 more | 1989-06-20 |
| 4840247 | Device for controlling 4wd vehicle central differential restriction device according to front and rear wheels rotational speed difference, and method of operation thereof | Yuji Kashihara, Yutaka Tage, Yasunari Nakamura, Tokuyuki Takahashi | 1989-06-20 |
| 4839525 | Method of and apparatus for measuring coordinates of edges of tape | Yukio Kano, Kuniyuki Yoshikawa, Hideaki Kishida, Mitsutoshi Maeda | 1989-06-13 |
| 4831892 | Automatic transmission with overdrive | Yoshio Shindo | 1989-05-23 |
| 4827289 | Thermal head | Shiro Tsuji, Eizo Naya, Takashi Yamanaka, Yoshihiro Usui, Noriyuki Hasebe | 1989-05-02 |
| 4809762 | Method of casting a composite metal article | Terumi Nagao, Toshiki Takeda, Yohikuni Maruyama, Toshitake Kanno | 1989-03-07 |
| 4796661 | Proportional electro-hydraulic pressure control valve | Yasuo Hishinuma | 1989-01-10 |
| 4777114 | Photosensitive resin composition | Kunihiro Ichimura, Masataka Ito, Masahiro Yamana | 1988-10-11 |