CK

Chihiro Kawahara

Sumitomo Electric Industries: 6 patents #4,612 of 21,551Top 25%
Mitsubishi Electric: 4 patents #7,099 of 25,717Top 30%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #439,614 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
12416528 Device and method for sensing an over-temperature of a power semiconductor Julio BRANDELERO, Stefan Mollov 2025-09-16
11808801 Semiconductor device reliability evaluation apparatus and semiconductor device reliability evaluation method Yukihiko Wada 2023-11-07
11750090 Semiconductor device and power conversion device Shinya YANO 2023-09-05
11346879 Semiconductor device Takeshi Horiguchi, Yoshiko Tamada, Yasushi Nakayama 2022-05-31
7707306 Routing device for connecting multiple physically discrete networks into a single system and startup method thereof Reiko Ueno, Yasuyuki Shintani, Seizo Tsuji 2010-04-27
RE39652 Multi-media information record device, and a multi-media information playback device Masahiro Oashi, Yuki Kusumi, Masahiro Kawai, Ryoichi Sasaki 2007-05-22
6614457 Focus control device that moves a focus in a GUI screen Norio Sanada, Kiyokazu Yamanaka, Hisayuki Kino 2003-09-02
6469719 Graphical user interface apparatus with improved layout of menu items Hisayuki Kino, Norio Sanada, Kiyokazu Yamanaka 2002-10-22
5983247 Data conversion apparatus for reading a document for a display screen and generating a display image for another display screen which has a different aspect ratio from the former display screen Kiyokazu Yamanaka, Kazuo Okamura, Junichi Hirai, Hidekazu Tanigawa 1999-11-09
5930808 Data conversion apparatus for data communication system Kiyokazu Yamanaka, Kazuo Okamura, Junichi Hirai, Hidekaau Tanigawa 1999-07-27
5767845 Multi-media information record device, and a multi-media information playback device Masahiro Oashi, Yuki Kusumi, Masahiro Kawai, Ryoichi Sasaki 1998-06-16