Issued Patents All Time
Showing 151–175 of 254 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5206413 | Method for preparing .alpha.-L-aspartyl-L-phenylalanine methyl ester | Masanobu Ajioka, Takeshi Oura, Chojiro Higuchi, Toshio Katoh | 1993-04-27 |
| 5205894 | Polyimide and high-temperature adhesive of polyimide | Masahiro Ohta, Saburo Kawashima, Yoshiho Sonobe, Shoji Tamai, Hideaki Oikawa +1 more | 1993-04-27 |
| 5196507 | Process for producing granules of polycarbonate and composition thereof | Yoshiyuki Totani, Masakatsu Nakatsuka | 1993-03-23 |
| 5196506 | Polymide | Shoji Tamai, Masahiro Ohta | 1993-03-23 |
| 5194632 | Fluoran compound, useful in heat sensitive recording materials | Masakatsu Nakatsuka, Atsuo Otsuji, Kiyoharu Hasegawa, Masatoshi Takagi | 1993-03-16 |
| 5185453 | Crystal of fluoran compound | Masakatsu Nakatsuka, Atsuo Otsuji, Kiyoharu Hasegawa, Kazuyoshi Kikkawa | 1993-02-09 |
| 5171468 | Aromatic polyisocyanate | Kiyoshi Shikai, Ryuzi Haseyama, Kouzou Hayashi, Katsuyoshi Sasagawa | 1992-12-15 |
| 5157097 | Polyamide-imide resins and production thereof | Hiroshi Takayanagi, Hirotoshi Katsuoka, Hiromi Nakano, Masumi Ookita, Masahiko Asano | 1992-10-20 |
| 5157085 | Polyimide resin composition | Masahiro Ohta, Saburo Kawashima, Katsuaki Iiyama, Shoji Tamai, Hideaki Oikawa | 1992-10-20 |
| 5147948 | Method for polymerizing vinyl chloride while inhibiting adhesion to the polymerization reactor with coating from poly(hydricphenol sulfide) | Seiichi Masuko, Ichisaburo Nakamura, Keiichi Fukuda, Yasuyuki Hatakeyama, Keizaburo Yamaguchi | 1992-09-15 |
| 5145949 | Production process for making aromatic amine resins | Keizaburo Yamaguchi, Yoshimitsu Tanabe, Tatsuhiro Urakami, Norimasa Yamaya, Masahiro Ohta | 1992-09-08 |
| 5132190 | Hydrozones and electrophotographic photoreceptors comprising them | Yasuyuki Yamada, Hiroyuki Akahori, Katashi Enomoto, Hisato Itoh, Tsutomu Nishizawa | 1992-07-21 |
| 5113009 | Preparation and isolation of mineral acid salt of an amino acid methyl ester | Masanobu Ajioka, Chojiro Higuchi, Takeshi Oura, Toshio Katoh | 1992-05-12 |
| 5112899 | Thermosetting resin composition | Norimasa Yamaya, Masahiro Ohta | 1992-05-12 |
| 5106937 | Thermosetting resin from penta arylene bis maleimide | Norimasa Yamaya, Shoji Tamai, Masahiro Ohta | 1992-04-21 |
| 5106953 | Aromatic amine resins, processes for producing the same and a thermosetting resin composition containing the same | Keizaburo Yamaguchi, Yoshimitsu Tanabe, Tatsuhiro Urakami, Norimasa Yamaya, Masahiro Ohta | 1992-04-21 |
| 5104962 | Thermosetting resin composition from pentaphenylene diamine | Norimasa Yamaya, Masahiro Ohta | 1992-04-14 |
| 5087689 | Polyimide and high-temperature adhesive of polyimide based on meta-phenoxy diamines | Masahiro Ohta, Saburo Kawashima, Yoshiho Sonobe, Shoji Tamai, Hideaki Oikawa +1 more | 1992-02-11 |
| 5087706 | Fluoran compounds, process for preparation thereof and recording materials comprising said compound | Atsuo Otsuji, Masakatsu Nakatsuka, Kiyoharu Hasegawa, Masatoshi Takagi | 1992-02-11 |
| 5086125 | Polyimide resin composition | Masahiro Ohta, Saburo Kawashima, Katsuaki Iiyama, Shoji Tamai, Hideaki Oikawa | 1992-02-04 |
| 5084507 | Thermosetting resin composition | Norimasa Yamaya, Masahiro Ohta | 1992-01-28 |
| 5079331 | Heat-resistant epoxy resin composition based on 2-(4-hydroxyphenyl)-2-(4-maleimidophenyl)propane | Mikio Kitahara, Koichi Machida, Takayuki Kubo, Motoyuki Torikai, Koutarou Asahina +2 more | 1992-01-07 |
| 5077436 | Bis(3-aminophenoxy) aromatics and method of preparing the same | Yukihiro Yoshikawa, Keizaburo Yamaguchi, Kenichi Sugimoto, Yoshimitsu Tanabe | 1991-12-31 |
| 5051494 | Thermosetting resin composition comprising an aromatic amine | Keizaburo Yamaguchi, Yoshimitsu Tanabe, Tatshuiro Urakami, Norimasa Yamaya, Masahiro Ohta | 1991-09-24 |
| 5049606 | Thermosetting resin composition | Norimasa Yamaya, Masahiro Ohta | 1991-09-17 |