Hitachi, JP ranks #3,568 worldwide for total patents filed all time, with 827 patents from 21 inventors. Leading employers of inventors based in Hitachi, JP include Panasonic, Hitachi Cable, Sumitomo Electric Industries.
Showing 1–21 of 21 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Takeshi Tanaka | Panasonic | 246 |
| 2 | Kenji Shibata | Hitachi Cable | 132 |
| 3 | Shigeo Suzuki | Sumitomo Electric Industries | 121 |
| #4 | Toru Koyama | Toyoda Gosei Co. | 47 |
| #5 | Takashi Kano | Sanyo Electric Co. | 45 |
| #6 | Shoichi Sasaki | Toyota | 35 |
| #7 | Toshio Takeuchi | Mitsumi Electric Co. | 33 |
| #8 | Akira Ogura | Hitachi | 19 |
| #9 | Yohei Maekawa | Brother Kogyo | 18 |
| #10 | Hisao Amano | Hitachi | 17 |
| #10 | Katsushi Aoki | Jx Metals | 17 |
| #12 | Jun Takamatsu | Kabushiki Kaisha Toshiba | 16 |
| #12 | Minoru Kawada | Mitsubishi Electric | 16 |
| #14 | Nobuyuki Oota | Aisin Seiki Kabushiki Kaisha | 15 |
| #15 | Tomomi Shiraki | Brother Kogyo | 11 |
| #16 | Mitsuo Kikkawa | Aisin Seiki Kabushiki Kaisha | 9 |
| #17 | Akiyoshi Osumi | Hitachi | 8 |
| #17 | Masayuki Kurihara | Sanden | 8 |
| #19 | Hiroaki Morii | Ngk Spark Plug Co. | 5 |
| #19 | Setsuo Saitou | Hitachi | 5 |
| #21 | Manabu Fukushima | Hitachi | 4 |