Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9638979 | Light control film | Michio Ogawa | 2017-05-02 |
| 8098419 | Light control film and light control glass | Hitoshi Yamazaki | 2012-01-17 |
| 8059331 | Light control film and light control glass | Hitoshi Yamazaki, Shigeshi Ohno | 2011-11-15 |
| 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 |
| 4404270 | Positively chargeable powdered electrophotographic toner containing dialkyl tin oxide charge control agent | Isamu Moribe, Hajime Yamamoto | 1983-09-13 |