Top Inventors at Pentax Precision Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Homu Takayama | 8 |
| 2 | Masami Shirai | 8 |
| 3 | Shinichi Suzuki | 5 |
| #4 | Katsuhiko Kenjo | 4 |
| #5 | Kenji Kaneko | 4 |
| #6 | Masayuki Ueno | 4 |
| #7 | Tadahisa Hoshino | 2 |
| #8 | Takanori Yachi | 2 |
| #9 | Eijiroh Tada | 1 |
| #10 | Go Watanabe | 1 |
| #11 | Masato Noguchi | 1 |
| #12 | Masahiro Sakurai | 1 |
| #13 | Masakazu Yamagata | 1 |
| #14 | Mitsuhiro Matsumoto | 1 |
| #15 | Nobuaki Kawatani | 1 |
| #16 | Sachiko Nasu | 1 |
| #17 | Shunichiro Wakamiya | 1 |
| #18 | Tatsuo Gotoh | 1 |
| #19 | Yoichi Kojima | 1 |
| #20 | Sadao Murano | 1 |