Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5137931 | Foamable phenolic resin composition and process for preparation thereof | Syuji Okumura, Shigetoshi Awano, Masahiro Kinoshita, Kazuo Tamemoto, Akihiro Maruyama +1 more | 1992-08-11 |
| 5093378 | Process for producing flexible polyurethane foam | Hajime Hasegawa, Takashi Ohashi | 1992-03-03 |
| 5008297 | Method for producing phenol resin foams and method of making foamed laminates | Akihiro Maruyama, Munehiko Kato, Katsuto Seki, Takashi Ohashi | 1991-04-16 |
| 4887923 | Platen roll | Yukio Andoh, Michiyuki Yamaguchi, Shosuke Suzuki, Yoshinori Egashira, Takeo Yokobori +1 more | 1989-12-19 |
| 4707408 | Roll for use in business machine | Shigeru Iwasawa | 1987-11-17 |
| 4647596 | Microcellular polyurethane elastomer and manufacturing method of the same | Seiji Ishii, Masanori Miyoshi, Osamu Kondo | 1987-03-03 |
| 4258139 | Process for producing flame-resistant foam resins | Toshio Yukuta, Kiyoshi Usui | 1981-03-24 |
| 4234695 | Method of producing polyurea foams | Toshio Yukuta, Kiyoshi Usui | 1980-11-18 |
| 4221875 | Flame resistant polyurethane foam and the method for manufacturing the same | Toshio Yukuta, Noboru Yamaguchi | 1980-09-09 |