Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Junichi Sakano — 30 Patents

Hitachi: 24 patents #1,341 of 28,497Top 5%
HDHitachi Power Semiconductor Device: 6 patents #6 of 79Top 8%
Tokyo, JP: #4,446 of 90,295 inventorsTop 5%
Overall (All Time): #121,623 of 4,157,543Top 3%
30 Patents All Time
Junichi Sakano has been granted 30 US patents while listed as an inventor at Hitachi. The first was granted in 1998 and the most recent in October 2021. Junichi Sakano ranks #121,623 of 4,157,543 US inventors in our database (top 2.9%). Patent records list Junichi Sakano in Tokyo, JP.

Patents per Year

Patents granted per year, 1998 to 2021Bar chart with a peak of 4 patents in 2021.peak 41998: 1 patents19981999: 1 patents2001: 2 patents20012002: 3 patents2006: 3 patents20062009: 1 patents2011: 2 patents20112012: 1 patents2013: 2 patents20132014: 1 patents2015: 2 patents20152017: 2 patents2018: 3 patents20182019: 2 patents2021: 4 patents2021

Issued Patents All Time

Showing 1–25 of 30 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11152887 Power conversion device, motor control system, and diagnosis method for power conversion device Yoshinobu Kimura, Kazuki Tani, Takashi Ogawa, Hiroshi Suzuki 2021-10-19
11049965 Semiconductor device and alternator using the same Masaki Shiraishi, Tetsuya Ishimaru, Mutsuhiro Mori, Shinichi Kurita 2021-06-29
11016138 Diagnosis system for power conversion device, diagnosis method for semiconductor module, and power conversion device Yoshinobu Kimura, Kimihisa Furukawa, Takashi Ogawa, Renichi Yamada 2021-05-25
11012022 Inverter device and electric motor device using same Tetsuya Ishimaru, Shinichi Kurita 2021-05-18
10319849 Semiconductor device, and alternator and power conversion device which use same Tetsuya Ishimaru, Mutsuhiro Mori, Kohhei Onda 2019-06-11
10229974 Semiconductor device and power conversion device Mieko Matsumura, Naoki Tega, Yuki Mori, Haruka Shimizu, Keisuke Kobayashi 2019-03-12
10122296 Power converter, diagnostic system of power converter, and power converter diagnostic method using current change Kimihisa Furukawa, Takashi Ogawa, Hisashi Endou 2018-11-06
10122299 Power conversion device Takashi Ogawa, Kimihisa Furukawa 2018-11-06
9966871 Rectification device, alternator, and power conversion device Tetsuya Ishimaru, Kohhei Onda, Mutsuhiro Mori 2018-05-08
9831145 Semiconductor device, and alternator and power converter using the semiconductor device Tetsuya Ishimaru, Mutsuhiro Mori, Shinichi Kurita, Shigeru Sugayama, Kohhei Onda 2017-11-28
9793011 Structure, electronic element module, heat exchanger, fuel rod, and fuel assembly Ryou Ishibashi, Takashi Naitou, Motomune Kodama, Takuya Aoyagi, Tetsushi HINO +4 more 2017-10-17
9190992 Semiconductor device and ultrasonic diagnostic apparatus using the same Kenji Hara 2015-11-17
9148232 Communications system Keisuke Yamamoto, Hiroshi Shinoda, Takahide Terada, Kohei ONDA 2015-09-29
8698194 Semiconductor integrated circuit with high withstand voltage element forming trench isolation on substrate Takuo Nagase 2014-04-15
8487343 Semiconductor device, semiconductor integrated circuit device for use of driving plasma display with using same, and plasma display apparatus Shinji Shirakawa, Kenji Hara 2013-07-16
8384124 Semiconductor device and semiconductor integrated circuit device for driving plasma display using the semiconductor device Kenji Hara, Shinji Shirakawa 2013-02-26
8299836 Level shift circuit and power conversion unit Naoki Sakurai, Seigoh Yukutake 2012-10-30
7948058 Semiconductor device and semiconductor integrated circuit device for driving plasma display using the semiconductor device Kenji Hara, Shinji Shirakawa 2011-05-24 $150,000
7875509 Manufacturing method of semiconductor apparatus and semiconductor apparatus, power converter using the same Kenji Hara, Shinji Shirakawa, Taiga Arai, Mutsuhiro Mori 2011-01-25 $103,000
7586467 Load drive circuit, integrated circuit, and plasma display Kenji Hara, Mutsuhiro Mori 2009-09-08 $89,000
7138778 Current sensor using mirror MOSFET and PWM inverter incorporating the same Shinichi Fujino, Toshiyuki Innami, Kohsei Goto 2006-11-21 $107,000
7126308 Interface circuit with power converter with interface circuit and electric vehicle with power converter Satoru Shigeta, Yuuji Maeda, Shinji Shirakawa 2006-10-24 $106,000
7112935 Current sensor using mirror MOSFET and PWM inverter incorporating the same Shinichi Fujino, Toshiyuki Innami, Kohsei Goto 2006-09-26 $145,000
6414370 Semiconductor circuit preventing electromagnetic noise Masahiro Nagasu, Hideo Kobayashi, Hideki Miyazaki, Shin Kimura, Mutsuhiro Mori 2002-07-02 $224,000
6392908 Method and apparatus for driving a semiconductor element Hideki Miyazaki, Katsunori Suzuki, Koji Tateno, Masahiro Iwamura, Mutsuhiro Mori 2002-05-21 $160,000