Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12379558 | Optical fiber ribbon and sub-tape-type optical fiber ribbon | Takashi Fujii | 2025-08-05 |
| 12321027 | Optical fiber ribbon | Takashi Fujii | 2025-06-03 |
| 10640122 | Driving consciousness estimation device | Hiroshi Kishi, Masakazu Akutsu, Motoyuki Akamatsu | 2020-05-05 |
| 10007078 | Optical fiber ribbon | Takashi Fujii | 2018-06-26 |
| 8689952 | Damper | — | 2014-04-08 |
| 7299965 | Method and apparatus for mounting and removing an electronic component | — | 2007-11-27 |
| 6898356 | Split type optical fiber tape core | Tomoyuki Hattori, Toshifumi Hosoya | 2005-05-24 |
| 6471892 | Method of producing tape type optical fiber core wire | Ken Takahashi, Shigenori Takaki, Ryoei Oka, Tomoyuki Hattori, Kohei Kobayashi +1 more | 2002-10-29 |
| 6028976 | Split type ribbon optical fiber core cable | Tomoyuki Hattori, Kohei Kobayashi, Kaoru Okuno, Ken Takahashi, Ryoei Oka | 2000-02-22 |
| 5945173 | Method of making optical fiber ribbon | Tomoyuki Hattori, Kohei Kobayashi, Kaoru Okuno, Ken Takahashi, Ryoei Oka | 1999-08-31 |
| 5904883 | Method for producing optical fiber ribbon | Tomoyuki Hattori, Kohei Kobayashi, Kaoru Okuno, Ken Takahashi, Ryoei Oka +1 more | 1999-05-18 |