Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4939024 | Radiowave absorbing body of the high electrical power-resistant type | Shigeru Oosawa, Haruyuki Yoshigahara | 1990-07-03 |
| 4303755 | Safety fuel tank containing reticulated polyurethane foam mixture of poly(oxypropylene-(oxyethylene)polyetherpolyols | Kazuo Yagura, Nobuhisa Fuchigami | 1981-12-01 |
| 4259452 | Method of producing flexible reticulated polyether polyurethane foams | Kazuo Yagura, Nobuhisa Fuchigami | 1981-03-31 |
| 4258139 | Process for producing flame-resistant foam resins | Takumi Ishiwaka, Kiyoshi Usui | 1981-03-24 |
| 4255526 | Method of producing a moisture- and heat-resistant flexible polyurethane foam | Hiroya Fukuda, Seiji Ishii | 1981-03-10 |
| 4246361 | Method for producing flame- and smoke-resistant polyurethane foam sheet by incorporation of a urea derivative in reaction mixture | Takashi Ohashi, Minoru Kojima, Masumi Saito | 1981-01-20 |
| 4234695 | Method of producing polyurea foams | Takumi Ishiwaka, Kiyoshi Usui | 1980-11-18 |
| 4226947 | Flexible urethane foams having a low density and a method for producing said foams | Hiroya Fukuda, Seiji Ishii, Kazuo Utsumi | 1980-10-07 |
| 4221875 | Flame resistant polyurethane foam and the method for manufacturing the same | Takumi Ishiwaka, Noboru Yamaguchi | 1980-09-09 |