Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5073797 | Toner sealing arrangement for a dry developing device of an electrostatic copier | Taizo Ono, Yoshihiro Katayama, Toshi Saitoh | 1991-12-17 |
HS
Hirotsugu Sakamoto
Japan Display: 14 patents #261 of 1,204Top 25%
Hitachi: 6 patents #6,582 of 28,497Top 25%
Hitachi Device Engineering Co.: 6 patents #68 of 514Top 15%
Hitachi Displays: 5 patents #194 of 752Top 30%
Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #152,526 of 4,157,543Top 4%
26
Patents All Time