Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4985328 | Dry toner, dry developer and process for forming electrophotographic images | Yuugo Kumagai, Ryouji Tan, Takashi Ikeda, Tetsuya Fujii, Chiaki Okada +2 more | 1991-01-15 |
| 4902771 | Imido-modified unsaturated polyester resin composition | Yasuo Sugawara, Yuuji Aimono | 1990-02-20 |
| 4353801 | Special solvent column for GPC and GPC method using the same | Yoshiyuki Mukoyama, Nobutoshi Chikazumi | 1982-10-12 |
| 4351910 | Expandable styrene series resin composition and process for production thereof | Takeo Kudo, Yoshiyuki Mukoyama, Hiromasa Kawai | 1982-09-28 |