KF

Keisuke Fujiwara

Nissan Motor Co.: 4 patents #1,803 of 8,689Top 25%
SO Sony: 4 patents #8,966 of 25,231Top 40%
NE Nec: 3 patents #4,195 of 14,502Top 30%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
3M: 1 patents #7,233 of 11,543Top 65%
NE Nec Electronics: 1 patents #715 of 1,789Top 40%
📍 Windom, MN: #238 of 2,819 inventorsTop 9%
🗺 Minnesota: #5,782 of 52,454 inventorsTop 15%
Overall (All Time): #369,039 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
D1028951 Antenna Kei Yokokawa, Narihiro Nakamoto, Toru Fukasawa, Hitoshi Arai, Tomohiro Takahashi +5 more 2024-05-28
11621482 Antenna manufacturing method and antenna device Kei Yokokawa, Narihiro Nakamoto, Toru Fukasawa, Hitoshi Arai, Tomohiro Takahashi +2 more 2023-04-04
6619245 Failsafe control system and method for an electromagnetically driven valve Hatsuo Nagaishi 2003-09-16
6577546 Semiconductor integrated circuit and operating method Sachiko Edo 2003-06-10
6463896 Apparatus for controlling position of electromagnetically operated engine valve Hirofumi Yano 2002-10-15
6401684 System for controlling engine equipped with electromagnetically operated engine valve Toshio Hori, Hidefumi Iwaki, Shigeyuki Nonomura, Hirofumi Yano 2002-06-11
6397814 Apparatus and method for controlling intake air quantity for internal combustion engine Hatsuo Nagaishi 2002-06-04
6208583 Synchronous semiconductor memory having an improved reading margin and an improved timing control in a test mode 2001-03-27
5946253 Semiconductor memory device 1999-08-31
5313342 Analog/digital compatible reproducing system Yutaka Soda, Hiroaki Yada, Satoru Seko, Munekatsu Fukuyama, Tetsuo Sekiya 1994-05-17
5260836 Apparatus for reproducing digital and analog audio signals Horoaki Yada, Yutaka Soda, Satoru Seko, Munekatsu Fukuyama, Tetsuo Sekiya 1993-11-09
4875128 Disc cartridge Vurnen J. Leonard, Arthur K. Kato, Kiyoshi Ohmori, Yutaka Soda 1989-10-17
4847713 Disc drive arrangement 1989-07-11