Hitachinaka, JP ranks #2,451 worldwide for total patents filed all time, with 1,268 patents from 13 inventors. Leading employers of inventors based in Hitachinaka, JP include Seiko Epson, Pentax, Fujitsu Limited.
Showing 1–13 of 13 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hiroshi Ito | Seiko Epson | 656 |
| 2 | Yasuhiro Yamamoto | Pentax | 273 |
| 3 | Naoki Saito | Fujitsu Limited | 143 |
| #4 | Akihiro Machida | Hitachi Automotive Systems | 56 |
| #5 | Daisuke Ikeda | 54 | |
| #6 | Kenichi Nakata | Rohm Co. | 26 |
| #7 | Shahedul Hoque | — | 20 |
| #8 | Osamu Ohno | Hitachi | 10 |
| #9 | Haruki Nishimura | Hitachi Astemo | 9 |
| #10 | Yuichi Michikawa | Hitachi | 8 |
| #11 | Nobuko Nishimura | Hitachi | 5 |
| #11 | Yusuke Narita | Honda Motor Co. | 5 |
| #13 | Kazunori Matsushita | Hitachi Koki Co. | 3 |
Part of California