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

Taku Kihara — 31 Patents

Sony: 29 patents #1,229 of 25,231Top 5%
NTNTT: 1 patents #2,911 of 4,871Top 60%
SESega Enterprises: 1 patents #101 of 368Top 30%
Overall (All Time): #119,289 of 4,157,543Top 3%
31 Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
4875044 Digital limiting circuit Yoshiyuki Ohta 1989-10-17
4855829 Aperture correction circuit 1989-08-08
4835594 Registration adjusting apparatus for a color television camera using a plurality of pick-up tubes 1989-05-30
4677464 Video signal generating apparatus with color sequencing Kazunori Yamaji, Takashi Nakamura 1987-06-30
4622581 Video camera control circuit averaging control signals each obtained by adding or subtracting a previous control signal and reference correcting data in response to error data, with the reference correcting data being reduced for each polarity reversal Takashi Nakamura 1986-11-11
4503456 Automatic registration adjusting system Takashi Nakamura, Kazunori Yamaji 1985-03-05