Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11353728 | Optical modulator | Hajime Tanaka, Tsutomu Ishikawa | 2022-06-07 |
| 11251143 | Semiconductor device and method of manufacturing the same | Naoya KONO, Takehiko Kikuchi | 2022-02-15 |
| 11215757 | Spot size converter and manufacturing method of the same | Hajime Tanaka | 2022-01-04 |
| 11063223 | Organic electron transport material and organic electroluminescent element using same | Masanobu Kotsubo, Tomoko Fukushima, Izumi Maki, Mitsuharu Noto | 2021-07-13 |
| 11031561 | Organic electron transport material and organic electroluminescent element using same | Tsuyoshi Hayashida, Masanobu Kotsubo, Izumi Maki, Mitsuharu Noto | 2021-06-08 |
| 10824044 | Mach-Zehnder modulator | Naoya KONO | 2020-11-03 |
| 10725241 | Asymmetrical spot-size converter and method of manufacturing spot-size converter | Naoya KONO, Takuo HIRATANI | 2020-07-28 |
| 10248000 | Semiconductor optical element and method for manufacturing the same | Takamitsu Kitamura | 2019-04-02 |
| 10121761 | Hetero-bipolar transistor and method for producing the same | — | 2018-11-06 |
| 9885936 | Mach-Zehnder modulator, method for fabricating Mach-Zehnder modulator | Naoya KONO | 2018-02-06 |
| 9753350 | Mach-Zehnder modulator, method of making optical waveguide structure | Takamitsu Kitamura, Hideki Yagi | 2017-09-05 |
| 9698023 | Traveling-wave amplifier | Naoki Itabashi, Taizo TATSUMI | 2017-07-04 |
| 9679996 | Semiconductor device having buried region beneath electrode and method to form the same | — | 2017-06-13 |
| 9523871 | Semiconductor optical modulator and method for manufacturing semiconductor optical modulator | Takamitsu Kitamura, Hideki Yagi, Daisuke Kimura, Hirohiko Kobayashi | 2016-12-20 |
| 9136475 | Organic EL element and method for producing same | Kenji Okumoto, Gosuke Sakamoto, Masaomi Shibata, Izumi Kakinoki, Tomoko Matoba +2 more | 2015-09-15 |
| 9127376 | Method for manufacturing nitride semiconductor self-supporting substrate and nitride semiconductor self-supporting substrate | Shoichi Takamizawa | 2015-09-08 |
| 8168196 | Grifola frondosa-derived substance having anti-influenza virus activity and method for producing the same | Masahide Takeyama | 2012-05-01 |
| 8003421 | Method for manufacturing compound semiconductor substrate, compound semiconductor substrate and light emitting device | Yukari Suzuki, Jun Ikeda | 2011-08-23 |
| 7648867 | Method for fabricating a semiconductor device | Hiroshi Yano | 2010-01-19 |
| 7122280 | Angular substrates | Jiro Moriya, Satoshi Okazaki | 2006-10-17 |
| 7055345 | Glass base material manufacturing apparatus and glass base material manufacturing method | Yuuji Tobisaka, Tadakatsu Shimada, Hiroshi Machida, Hiroshi Tsumura, Hideo Hirasawa | 2006-06-06 |
| 6848276 | Optical fiber manufacture method, preform manufacture method, and preform manufacture apparatus | Yoshiaki Shimizu, Takaaki Nagano, Tadakatsu Shimada, Hideo Hirasawa, Kazuhisa Hatayama +5 more | 2005-02-01 |
| 6790129 | Method for polishing angular substrates | Jiro Moriya, Satoshi Okazaki, Hidekazu Ozawa, You Ishii, Shunichiro Kojima | 2004-09-14 |
| 6779362 | Method of making an optical fiber preform where a second elongation is based on a mark on a glass rod | Yoshiaki Shimizu, Takaaki Nagano, Tadakatsu Shimada, Hideo Hirasawa, Kazuhisa Hatayama +5 more | 2004-08-24 |
| 6672112 | OVD apparatus including air-regulating structure | Yuuji Tobisaka, Tadakatsu Shimada, Hiroshi Machida, Hiroshi Tsumura, Hideo Hirasawa | 2004-01-06 |