KI

Katsuyuki Ishikawa

TC Taiheiyo Cement: 10 patents #2 of 203Top 1%
SC Stanley Electric Co.: 1 patents #550 of 1,072Top 55%
TL Tsb Limited: 1 patents #3 of 4Top 75%
Overall (All Time): #455,727 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
10680443 Solar power generation system 2020-06-09
7535155 Piezoelectric device and piezoelectric switch provided with the same 2009-05-19
6882090 Piezoelectric transformer and strobe apparatus having the piezoelectric transformer Takeshi Fujimura, Masaaki Toyama 2005-04-19
6873086 Piezoelectric transformer and strobe apparatus having the piezoelectric transformer Takeshi Fujimura, Masaaki Toyama 2005-03-29
6564015 Electronic flash device Takeshi Fujimura, Toshiyuki Terada, Tatsuya Goto 2003-05-13
6486612 Control circuit and method for protecting a piezoelectric transformer from an open state and a short-circuited state Takeshi Fujimura, Masaaki Toyama 2002-11-26
6342752 Piezoelectric transformer element and method of mounting it in a housing Masako Kataoka, Takeshi Fujimura, Takahiro Yamakawa, Keizo Tsukamoto 2002-01-29
6262518 Housing for piezoelectric transformer device Takeshi Fujimura, Masaaki Toyama, Katsumi Uesawa 2001-07-17
6239558 System for driving a cold-cathode fluorescent lamp connected to a piezoelectric transformer Takeshi Fujimura, Masaaki Toyama 2001-05-29
6198198 Control circuit and method for piezoelectric transformer Takeshi Fujimura, Masaaki Toyama 2001-03-06
6172447 Piezoelectric transformer device Takeshi Fujimura, Masaaki Toyama, Masako Kataoka, Toru Ezaki, Takahiro Yamakawa +1 more 2001-01-09