Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11250871 | Acoustic signal separation device and acoustic signal separating method | Keigo Kawashima, Jun Ishii, Yohei Okato | 2022-02-15 |
| 11068652 | Information processing device | Yusuke KOJI | 2021-07-20 |
| 9978368 | Information providing system | Masanobu Osawa, Takumi TAKEI, Yuki Furumoto, Tomohiro Narita | 2018-05-22 |
| 9450698 | Optical transmission device, optical transmission system, and optical transmission method | Koji Matsunaga, Tatsuya Toyozumi, Yasuo Tanaka, Yuichiro Sakane, Koji Bato +1 more | 2016-09-20 |
| 9270382 | Optical communication apparatus and control method thereof | Yuichiro Sakane, Koji Matsunaga, Yasuo Tanaka, Tatsuya Toyozumi, Koji Bato +1 more | 2016-02-23 |
| 9112637 | Optical transmission device and method | Yuichiro Sakane, Koji Bato, Tatsuya Toyozumi, Koji Matsunaga, Wataru Kawasaki | 2015-08-18 |
| 9077475 | Optical packet switching system and method for controlling the peak power | Satoru Okano, Koji Bato | 2015-07-07 |
| 9040859 | Detecting apparatus, removing apparatus, detecting method, and removing method | Eiichiro Yamada, Hiroshi Suganuma, Yuji Kobayashi, Takayuki Shimazu, Maya Miyata | 2015-05-26 |
| 9002439 | Blood vessel wall analyzing device and blood vessel wall analyzing method | Kazunori Okada, Hiroshi Suganuma, Masato Tanaka, Akira Ishii, Toshihiro Munemitsu +1 more | 2015-04-07 |
| 7212717 | Optical fiber | Kenichiro Takahashi, Tetsutarou Katayama | 2007-05-01 |
| 6709997 | Silica glass article and manufacturing process therefor | Akira Urano, Toshio Danzuka, Yasuhiko Shishido, Masaharu Mogi, Michihisa Kyoto | 2004-03-23 |
| 6438997 | Method of elongating glass preform | Tomomi Moriya | 2002-08-27 |
| 6333283 | Silica glass article and manufacturing process therefor | Akira Urano, Toshio Danzuka, Yasuhiko Shishido, Masaharu Mogi, Michihisa Kyoto | 2001-12-25 |
| 6138481 | Glassrod elongation heating furnance having double bellows | Tomomi Moriya | 2000-10-31 |
| 5983673 | Silica glass article and manufacturing process therefor | Akira Urano, Toshio Danzuka, Yasuhiko Shishido, Masaharu Mogi, Michihisa Kyoto | 1999-11-16 |
| 5942019 | Elongating apparatus and method for glass preform and furnace body for elongating apparatus | Tomomi Moriya | 1999-08-24 |
| 5755849 | Method for elongating glass preform | Sumio Hoshino, Yuichi Ohga, Masumi Ito, Toshio Danzuka | 1998-05-26 |
| 5474589 | UV light-permeable glass and article comprising the same | Yuichi Ohga, Shinji Ishikawa, Hiroshi Yokota, Michihisa Kyoto | 1995-12-12 |
| 5438640 | Optical waveguide device for receiving functional component | Eisuke Sasaoka, Hiroo Kanamori, Hiroshi Suganuma, Shinji Ishikawa | 1995-08-01 |
| 5236482 | Method for producing glass preform for optical fiber | Toshio Danzuka, Masumi Ito, Ichiro Tsuchiya | 1993-08-17 |
| 4780178 | Rotary evaporator with control system | Naoki Yoshida, Takao Kawakami | 1988-10-25 |
| 4522684 | Elevational operating device for a rotary evaporator | — | 1985-06-11 |