Issued Patents All Time
Showing 1–25 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8854820 | Power module | Shingo Yamamoto, Akio Sumiya, Naoto Inoue, Makoto Tami, Ryo Sugihara +3 more | 2014-10-07 |
| 7779532 | Manufacturing method of hybrid permanent magnet type electric rotating machine | Masafumi Sakamoto, Toru Kobayashi, Masahiko Azegami, Yasuaki Motegi, Takaya Kato +4 more | 2010-08-24 |
| 7589440 | Stepping motor | Shoji Oiwa, Masafumi Sakamoto, Toru Kobayashi, Masahiko Azegami, Yasuaki Motegi +4 more | 2009-09-15 |
| 7068001 | Motor control system | Yoshihiro Okumatsu, Shoji Ohiwa | 2006-06-27 |
| 6897633 | Stepping motor driver | Yoshifumi Kuwano, Akio Takemori, Hiroaki Taka, Yoshihiro Okumatsu, Atsuo Kawamura +1 more | 2005-05-24 |
| 6850027 | Stepping motor driver | Yoshifumi Kuwano, Akio Takemori, Yoshihiro Okumatsu, Atsuo Kawamura | 2005-02-01 |
| 6546760 | Optical fiber drawing furnace with a zig zag heating element | Ichiro Tsuchiya, Kohei Kobayashi, Hiroaki Ohta, Kazuya Kuwahara, Katsuyuki Tsuneishi +1 more | 2003-04-15 |
| 6181859 | Coated optical fiber and method of making the same | Atsushi Suzuki, Nobuhiro Akasaka | 2001-01-30 |
| 6173102 | Coated optical fiber and its manufacturing method | Atsushi Suzuki, Nobuhiro Akasaka | 2001-01-09 |
| 6078715 | Optical fiber | Takashi Fujii, Kazuki Sogabe, Takayuki Mishima | 2000-06-20 |
| 6004675 | Optical glass fiber | Nobuhiro Akasaka, Tatsuya Kakuta, Kohei Kobayashi, Shigeru Tomita | 1999-12-21 |
| 5916495 | Plastic optical fiber preform, and process and apparatus for producing the same | Tsuyoshi Nonaka, Toshifumi Hosoya, Yuji Kobayashi | 1999-06-29 |
| 5891570 | Plastic optical fiber preform having a jacket layer | Tsuyoshi Nonaka, Toshifumi Hosoya, Yuji Kobayashi | 1999-04-06 |
| 5851666 | Plastic optical fiber preform, and process and apparatus for producing the same | Tsuyoshi Nonaka, Toshifumi Hosoya, Yuji Kobayashi | 1998-12-22 |
| 5835656 | Coated optical fiber | Kazumasa Oishi, Nobuhiro Akasaka, Tatsuya Kakuta | 1998-11-10 |
| 5703988 | Coated optical fiber and fabrication process therefor | Kazumasa Oishi, Nobuhiro Akasaka, Tatsuya Kakuta | 1997-12-30 |
| 5644669 | Physical property evaluation method for optical fiber coating, and coated optical fiber | Kazumasa Oishi, Atsushi Suzuki, Nobuhiro Akasaka | 1997-07-01 |
| 5639512 | Plastic optical fiber preform, and process and apparatus for producing the same | Tsuyoshi Nonaka, Toshifumi Hosoya, Yuji Kobayashi | 1997-06-17 |
| 5614253 | Plastic optical fiber preform, and process and apparatus for producing the same | Tsuyoshi Nonaka, Toshifumi Hosoya, Yuji Kobayashi | 1997-03-25 |
| 5441215 | Slitted winding wheel for optical fiber | Katsuya Nagayama, Toshifumi Hosoya, Ichiro Yoshimura | 1995-08-15 |
| 5432873 | Optical switch | Toshifumi Hosoya, Yuji Kobayashi, Tsuyoshi Nonaka | 1995-07-11 |
| 5422182 | Light transmitting glass fiber | Kazumasa Oishi, Nobuhiro Akasaka, Tatsuya Kakuta, Wataru Katsurashima, Shigeru Tomita | 1995-06-06 |
| 5322228 | Method for screening optical fiber and apparatus for carrying out method | Katsuya Nagayama, Toshifumi Hosoya, Yutaka Wada, Ichiro Yoshimura, Yuji Kobayashi | 1994-06-21 |
| 5297015 | Power supply control system | Hideki Miyazaki, Ikuo Yamato, Kenichi Onda, Yuzo Morita, Hidefumi Shirahama +2 more | 1994-03-22 |
| 5274541 | Parallel circuit module including a diode and an IGBT | Shin Kimura, Norikazu Tokunaga, Mutsuhiro Mori, Toshiki Kurosu, Yutaka Suzuki +4 more | 1993-12-28 |