Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12237685 | Power management system, server, and power supply and demand adjustment | Haruka Hirose, Yusuke Horii, Toru Nakamura, Takaaki Sano | 2025-02-25 |
| 12218480 | Semiconductor optical amplifier integrated laser | Atsushi Nakamura, Kaoru Okamoto, Masatoshi Arasawa, Tetsuya Nishida, Yasushi Sakuma +1 more | 2025-02-04 |
| 12194878 | Server and power management method | Haruka Hirose, Yusuke Horii, Toru Nakamura, Takaaki Sano | 2025-01-14 |
| 12100929 | Semiconductor optical device and method for manufacturing the same | Ryosuke Nakajima, Yasushi Sakuma | 2024-09-24 |
| 12046870 | Optical semiconductor device | Atsushi Nakamura, Ryosuke Nakajima, Ryu Washino, Shoko Yokokawa, Kouji Nakahara | 2024-07-23 |
| 12024043 | Server and power management method | Haruka Hirose, Yusuke Horii, Toru Nakamura, Takaaki Sano | 2024-07-02 |
| 12027822 | Optical semiconductor device | Atsushi Nakamura, Hayato TAKITA, Ryosuke Nakajima, Masatoshi Arasawa, Ryu Washino | 2024-07-02 |
| 11929612 | Server and power management method | Haruka Hirose, Yusuke Horii, Toru Nakamura, Takaaki Sano | 2024-03-12 |
| 11912154 | Power management system, server, and power supply and demand adjustment method | Haruka Hirose, Yusuke Horii, Toru Nakamura, Takaaki Sano | 2024-02-27 |
| 11870116 | Power management system, server, and power supply and demand adjustment method | Haruka Hirose, Yusuke Horii, Toru Nakamura, Takaaki Sano | 2024-01-09 |
| 11817674 | Semiconductor optical device and method for manufacturing the same | Ryosuke Nakajima, Yasushi Sakuma | 2023-11-14 |
| 11764377 | Fuel cell system | Fumihisa Ishiguro, Kiyoshi Yoshinaga | 2023-09-19 |
| 11710983 | Electric power system and server | Haruka Hirose, Yusuke Horii, Toru Nakamura, Takaaki Sano | 2023-07-25 |
| 11710940 | Semiconductor optical device | Yasushi Sakuma, Kouji Nakahara | 2023-07-25 |
| 11552448 | Semiconductor optical amplifier integrated laser | Atsushi Nakamura, Kaoru Okamoto, Masatoshi Arasawa, Tetsuya Nishida, Yasushi Sakuma +1 more | 2023-01-10 |
| 11283242 | Semiconductor optical device | Yasushi Sakuma, Kouji Nakahara | 2022-03-22 |
| 10553881 | Fuel cell | — | 2020-02-04 |
| 10340532 | Separator for fuel cell, fuel cell and method of manufacturing fuel cell | Hiroki Okabe, Hiroya Nakaji, Makoto Yoshida, Takuya Kurihara, Kenji Sato +4 more | 2019-07-02 |
| 8932775 | Method and apparatus for controlling the operation of a fuel cell | Robert Mason Darling, Shampa Kandoi | 2015-01-13 |
| 8603689 | Fuel cell system which measures impedance | Kota Manabe, Nobuyuki Orihashi, Masahiro Shige | 2013-12-10 |
| 8101312 | Fuel cell stack with improved resistance to flooding | Masaaki Kondo | 2012-01-24 |
| 8034498 | Fuel cell system | Kota Manabe, Mikio Kizaki, Nobuyuki Orihashi, Masahiro Shige | 2011-10-11 |
| 7597977 | Diagnostic method for fuel cell | Masaaki Kondo | 2009-10-06 |