SO

Seiji Oka

Mitsubishi Electric: 32 patents #398 of 25,717Top 2%
Ricoh Company: 18 patents #1,197 of 9,818Top 15%
DI Daikin Industries: 4 patents #820 of 2,957Top 30%
OM Omron: 3 patents #980 of 3,089Top 35%
Overall (All Time): #42,731 of 4,157,543Top 2%
57
Patents All Time

Issued Patents All Time

Showing 1–25 of 57 patents

Patent #TitleCo-InventorsDate
12352674 Test method and method for manufacturing semiconductor device Hidetoshi Ishibashi, Ayumi Minamide, Yurie Furuta, Shunji Masumori 2025-07-08
11846436 Floor-standing air conditioner Akihiro Nakano, Fumika Masuda 2023-12-19
11835245 Air conditioning system, and indoor unit of same Akihiro Nakano, Fumika Masuda 2023-12-05
11735514 Semiconductor device and power conversion device Shota MORISAKI 2023-08-22
11368094 Control system and power supply unit Tatsuo Ogaki, Kenji Komatsubara 2022-06-21
10559659 Power semiconductor device Atsufumi INOUE, Tsuyoshi Kawakami, Akihiko Furukawa, Hidetada Tokioka, Mutsumi Tsuda +1 more 2020-02-11
10508849 Air conditioner with outdoor temperature sensing correlated to outdoor fan control Takeshi Yamakawa, Kengo Murayama 2019-12-17
10490422 Manufacturing method for semiconductor device Tetsuya Ueda, Hiroshi Yoshida, Ken Sakamoto 2019-11-26
10418347 Power semiconductor device and power semiconductor core module Yoshiko Tamada, Yoshihiro Yamaguchi, Tetsuo Motomiya 2019-09-17
10204886 Semiconductor device Hiroshi Yoshida, Yuji IMOTO, Hidetoshi Ishibashi, Daisuke Murata, Kenta NAKAHARA +2 more 2019-02-12
10068819 Semiconductor device Hiroshi Yoshida, Hidetoshi Ishibashi, Yuji IMOTO, Daisuke Murata, Kenta NAKAHARA 2018-09-04
9287201 Semiconductor device Hiroki Shiota, Yoshihiro Yamaguchi 2016-03-15
9196604 Power semiconductor module having pattern laminated region Yoshiko Tamada 2015-11-24
8994165 Power semiconductor device Takeshi Oi, Yoshiko Obiraki, Osamu Usui, Yasushi Nakayama 2015-03-31
8952520 Power semiconductor device Yoshiko Obiraki, Osamu Usui, Yasushi Nakayama, Takeshi Oi 2015-02-10
8741695 Semiconductor device and method of manufacturing the same Kazuhiro Tada, Hiroshi Yoshida 2014-06-03
8610261 Power semiconductor device Yoshiko Obiraki, Takeshi Oi 2013-12-17
8575745 Power semiconductor device, printed wiring board, and mechanism for connecting the power semiconductor device and the printed wiring board Shiori Idaka, Hiroshi Yoshida 2013-11-05
8502385 Power semiconductor device Tetsuya Ueda 2013-08-06
8436459 Power semiconductor module Yoshiko Obiraki, Takeshi Oi 2013-05-07
8319333 Power semiconductor module Yoshiko Obiraki, Takeshi Oi 2012-11-27
8313986 Method of manufacturing power semiconductor device Yoshihiro Yamaguchi 2012-11-20
8304882 Power semiconductor device Yoshihiro Yamaguchi 2012-11-06
8299603 Power semiconductor device Osamu Usui, Yasushi Nakayama, Yoshiko Obiraki, Takeshi Oi 2012-10-30
8299601 Power semiconductor module and manufacturing method thereof Yoshiko Obiraki, Takeshi Oi 2012-10-30