Issued Patents All Time
Showing 101–125 of 254 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5401796 | Aliphatic polyester and preparation process thereof | Takeshi Kashima, Taiji Kameoka, Chojiro Higuchi, Masanobu Ajioka | 1995-03-28 |
| 5391806 | Heat-sensitive recording materials and phenol compounds | Atsuo Otsuji, Toshihiro Motoshima, Yoshimitsu Tanabe, Kiyoharu Hasegawa, Kazuyoshi Kikkawa +1 more | 1995-02-21 |
| 5380805 | Polyimides, process for the preparation thereof and polyimide resin compositions | Shoji Tamai, Masahiro Ohta, Saburo Kawashima, Katsuaki Iiyama, Hideaki Oikawa +2 more | 1995-01-10 |
| 5380814 | Aromatic polycarbonate and process for production thereof | Yoshiyuki Totani, Motokazu Hirao, Tomonori Ito, Masakatsu Nakatsuka | 1995-01-10 |
| 5376615 | Color-developing compositions and their use | Keizaburo Yamaguchi, Yoshimitsu Tanabe, Kiyoharu Hasegawa | 1994-12-27 |
| 5374708 | Formed polyimide article | Shoji Tamai, Masahiro Ohta, Masumi Saruwatari | 1994-12-20 |
| 5371168 | Amorphous polyimide powder, preparation process of the powder, and heat-resistant adhesive and bonding method by use of the powder | Wataru Yamashita, Shoji Tamai | 1994-12-06 |
| 5364967 | Aromatic diamine compounds, bismalemide compounds, thermosetting resin forming compositions therefrom, resin therefrom, and methods for their preparation | Keizaburo Yamaguchi, Tatsuhiro Urakami, Yoshimitsu Tanabe, Midori Yamazaki, Shoji Tamai +2 more | 1994-11-15 |
| 5359117 | Processes for producing aromatic polycarbonate oligomer and aromatic polycarbonate | Yoshiyuki Totani, Motokazu Hirao, Tomonori Ito, Masakatsu Nakatsuka, Ken-ichi Goto +4 more | 1994-10-25 |
| 5354890 | Aromatic diamine intermediates useful in the preparation of polyimides | Shoji Tamai, Wataru Yamashita, Yuichi Okawa, Yuko Ishihara, Keizaburo Yamaguchi | 1994-10-11 |
| 5354839 | Polyimide and preparation process of same | Wataru Yamashita, Yoshihiro Sakata, Toshiyuki Kataoka, Yuichi Okawa, Hideaki Oikawa +4 more | 1994-10-11 |
| 5346982 | Heat-resistant adhesive | Shoji Tamai, Katsuaki Iiyama | 1994-09-13 |
| 5326739 | Process for producing 3,5-di(.alpha.-methylbenzyl)salicylic acid derivative, and use of polyvalent-metal-modified product thereof as color developer | Yoshimitsu Tanabe, Keizaburo Yamaguchi | 1994-07-05 |
| 5324704 | Fluoran compounds, crystalline toluene adducts thereof, recording material comprising same and process for their preparation | Masakatsu Nakatsuka, Atsuo Otsuji, Kiyoharu Hasegawa, Masatoshi Takagi | 1994-06-28 |
| 5322962 | Aromatic diamine intermediates useful in the preparation of polyimide | Shoji Tamai, Keizaburo Yamaguchi, Yuko Ishihara, Saburo Kawashima, Hideaki Oikawa +1 more | 1994-06-21 |
| 5321096 | Polyimide composition | Yuichi Okawa, Nobuhito Koga, Hideaki Oikawa, Tadashi Asanuma | 1994-06-14 |
| 5312866 | Polyimide based resin composition | Toshihiko Tsutsumi, Toshiyuki Nakakura, Shuichi Morikawa, Katsunori Shimamura, Toshiaki Takahashi +7 more | 1994-05-17 |
| 5310865 | Polyhydroxycarboxylic acid and preparation process thereof | Katashi Enomoto, Masanobu Ajioka | 1994-05-10 |
| 5306688 | Salicylic acid derivatives, the process for preparing the same and the heat-sensitive recording materials comprising thereof | Yoshimitsu Tanabe, Yuki Kobayashi, Atsuo Otsuji, Masakatsu Nakatsuka, Kiyoharu Hasegawa +3 more | 1994-04-26 |
| 5302743 | Preparation of N-protected .alpha.-L-aspartyl-L-phenylalanine methyl ester | Toshio Katoh, Chojiro Higuchi, Takeshi Oura, Masanobu Ajioka | 1994-04-12 |
| 5302571 | Crystals of fluoran compound, crystalline solvates thereof, process for their preparation and recording material comprising said crystal or said solvate | Atsuo Otsuji, Masakatsu Nakatsuka, Kiyoharu Hasegawa, Kazuyoshi Kikkawa | 1994-04-12 |
| 5300661 | Process for preparation of a recording material comprising a novel crystal of a fluoran compound | Masakatsu Nakatsuka, Atsuo Otsuji, Kiyoharu Hasegawa, Kazuyoshi Kikkawa | 1994-04-05 |
| 5300620 | Heat-resistant adhesive and method of adhesion by using adhesive | Hideaki Okikawa, Shoji Tamai, Katsuaki Iiyama, Saburo Kawashima, Tadashi Asanuma | 1994-04-05 |
| 5300473 | Recording material comprising crystal of fluoran compound | Masakatsu Nakatsuka, Atsuo Otsuji, Kiyoharu Hasegawa, Kazuyoshi Kikkawa | 1994-04-05 |
| 5296635 | Preparation of bis(3-nitrophenoxy) compound | Motohiro Kase, Hitoshi Nakayama, Masaru Wada, Teruyuki Nagata | 1994-03-22 |