Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
HA

Hitoshi Akamine — 36 Patents

RTRenesas Technology: 21 patents #53 of 3,337Top 2%
Hitachi: 9 patents #4,653 of 28,497Top 20%
HSHitachi Tohbu Semiconductor: 7 patents #20 of 223Top 9%
HCHitachi Ulsi Systems Co.: 6 patents #125 of 867Top 15%
MCMurata Manufacturing Co.: 4 patents #1,804 of 5,295Top 35%
HCHitachi Hybrid Network Co.: 2 patents #5 of 22Top 25%
RERenesas Electronics: 2 patents #1,855 of 4,529Top 45%
ACAkita Electronics Systems Co.: 1 patents #3 of 36Top 9%
HSHitachi Communication Systems: 1 patents #34 of 83Top 45%
Overall (All Time): #92,255 of 4,157,543Top 3%
36 Patents All Time

Issued Patents All Time

Showing 26–36 of 36 patents

Patent #TitleCo-InventorsDate
6897728 High frequency power amplifier module and wireless communication system Masahito Numanami, Tsuyoshi Shibuya, Tetsuaki Adachi, Masatoshi Morikawa, Yasuhiro Nunogawa 2005-05-24
6765268 Multiple transistors having a common gate pad between first group of drains and second group of drains Masashi Suzuki, Masao Yamane, Tetsuaki Adachi 2004-07-20
6731167 High frequency power amplifier module and wireless communication apparatus Masashi Suzuki, Tetsuaki Adachi, Takahiro Sato, Masashi Maruyama, Susumu Takada 2004-05-04
6658243 High frequency power amplifying apparatus having amplifying stages with gain control signals of lower amplitudes applied to earlier preceding stages Nobuhiko Ishihara, Tetsuaki Adachi, Yasuhiro Nunogawa, Kogi Sugita 2003-12-02
6617927 High frequency power amplifier module, and wireless communications system Masahito Numanami, Tsuyoshi Shibuya, Tetsuaki Adachi, Masatoshi Morikawa, Yasuhiro Nunogawa 2003-09-09
6605999 High-frequency power amplifier, wireless communication apparatus and wireless communication system Kouichi Matsushita, Tomio Furuya, Tetsuaki Adachi, Nobuhiro Matsudaira 2003-08-12
6483398 Directional coupler, high frequency circuit module and wireless communication system Hiroyuki Nagamori, Shun Imai, Satoshi Arai, Yasuhiro Nunogawa 2002-11-19
6463267 High frequency power amplifying apparatus having amplifying stages with gain control signals of lower amplitudes applied to earlier preceding stages Nobuhiko Ishihara, Tetsuaki Adachi, Yasuhiro Nunogawa, Kogi Sugita 2002-10-08
6433639 High frequency power amplifier module and wireless communication system Masahito Numanami, Tsuyoshi Shibuya, Tetsuaki Adachi, Masatoshi Morikawa, Yasuhiro Nunogawa 2002-08-13
6329879 High frequency power amplifier system and wireless communication system Masashi Maruyama, Tsutomu Kobori, Shinji Moriyama 2001-12-11
5075803 Signal discriminating device for VTR having expanded dynamic range Eiji Moro, Hiroyuki Torii, Kuniaki Miura 1991-12-24