Otaru, JP ranks #19,862 worldwide for total patents filed all time, with 67 patents from 24 inventors. Leading employers of inventors based in Otaru, JP include Advantest, Toray Industries, Hitachi.
Showing 1–24 of 24 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yoshiaki Ogiso | Advantest | 10 |
| 2 | Tomitake Higuchi | Toray Industries | 7 |
| 3 | Masahiko Furuya | Hitachi | 6 |
| #4 | Iichiro Seino | Usui Kokusai Sangyo Kaisha Limited | 5 |
| #4 | Michiya Hayashida | Three-D Composites Research | 5 |
| #6 | Tadahito Nagayasu | Toray Industries | 4 |
| #6 | Hiroko Kikuchi | Kuraray Co. | 4 |
| #8 | Shinichi Sadahiro | Mitutoyo | 3 |
| #8 | Shigehiro Mori | Morinaga Milk Industry Co. | 3 |
| #8 | Eiji Kurata | Usui Kokusai Sangyo Kaisha Limited | 3 |
| #11 | Hideo Futami | Yamatake | 2 |
| #11 | Daisuke Asahi | Usui Kokusai Sangyo Kaisha Limited | 2 |
| #11 | Shouichi Edo | Nissan Motor Co. | 2 |
| #14 | Fukio Iimura | Toshiba Kikai | 1 |
| #14 | Aki Katsumata | Usui Kokusai Sangyo Kaisha Limited | 1 |
| #14 | Toyohiko Aoyama | Chisso | 1 |
| #14 | Hiroji Kusaka | Oki Electric Industry Co. | 1 |
| #14 | Yasushige Ishii | Usui Kokusai Sangyo Kaisha Limited | 1 |
| #14 | Akio Tagami | Usui Co. | 1 |
| #14 | Koichi MITSUFUJI | Paloma Kogyo Kabushiki Kaisha | 1 |
| #14 | Kimihiro Shimamura | — | 1 |
| #14 | Shuging Li | Kaneka | 1 |
| #14 | Itaru Hasegawa | Sumitomo Bakelite Co. | 1 |
| #14 | Yasuo Toyohara | — | 1 |