Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8168252 | Electromagnetic wave shielding material and process for producing the same | Atsushi Okada, Hideki Tanaka, Toshiyuki Honda, Masafumi Ito, Junichi Kato +2 more | 2012-05-01 |
| 4870146 | Process for producing a light color high softening point hydrocarbon resin | Yasushi Sakai, Tetsuo Fujii, Michio Saito, Motoaki Munekata | 1989-09-26 |
| 4684711 | Process for producing a hydrocarbon resin | Yasushi Sakai, Koji Tanaka, Michio Saito | 1987-08-04 |
| 4680349 | Method of polymerizing vinyl monomers with coated reactor | Tetsuya Asahi, Hiroshi Kaneko, Yasushi Sakai, Tooru Iwashita | 1987-07-14 |