Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4384808 | Under-water cable burying device | Kazuomi Yamamura, Yoshinao Iwamoto, Hifumi Sakaguchi | 1983-05-24 |
KA
Kenichi Asakawa
Kokusai Denshin Denwa Co.: 9 patents #36 of 382Top 10%
Nippon Steel: 6 patents #412 of 4,423Top 10%
Nec: 3 patents #4,195 of 14,502Top 30%
Independent Administrative Institution, Japan Agency For Marine-Earth Science And Technology: 3 patents #2 of 35Top 6%
Japan Agency For Marine-Earth Science And Technology: 2 patents #21 of 194Top 15%
Kddi Submarine Cable Systems: 1 patents #11 of 27Top 45%
Japan Marine Science And Technology Center: 1 patents #10 of 37Top 30%
Kdd: 1 patents #44 of 96Top 50%
Kdd Submarine Cable Systems: 1 patents #25 of 42Top 60%
Duo-Fast: 1 patents #13 of 31Top 45%
Overall (All Time): #154,950 of 4,157,543Top 4%
26
Patents All Time