Issued Patents All Time
Showing 51–51 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5223979 | Zoom lens system | — | 1993-06-29 |
SY
Shuji Yoneyama
Pentax: 24 patents #63 of 761Top 9%
Pentax: 12 patents #31 of 396Top 8%
Asahi Kogaku Kogyo K.K.: 2 patents #47 of 180Top 30%
Takeda Pharmaceutical Company Limited: 2 patents #562 of 1,531Top 40%
Overall (All Time): #52,858 of 4,157,543Top 2%
51
Patents All Time