Futoshi Tsukada has been granted 8 US patents while listed as an inventor at Sony . The first was granted in 1996 and the most recent in March 2024. Futoshi Tsukada ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Futoshi Tsukada in Nagano, JP.
Patents per Year Patents granted per year, 1996 to 2024 Bar chart with a peak of 2 patents in 2003. peak 2 1996: 1 patents 1996 2001: 1 patents 2001 2003: 2 patents 2003 2004: 2 patents 2004 2016: 1 patents 2016 2024: 1 patents 2024
Issued Patents All Time
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Showing 1–8 of 8 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
11929342 Semiconductor device with leads having step surfaces Yukinori Hatori , Yoshiyuki Sawamura 2024-03-12
9490233 Fingerprint recognition semiconductor device and semiconductor device Yukinori Hatori , Takashi Ozawa , Kazuya Kojima 2016-11-08
6765851 Optical disc, data-recording apparatus and data-recording method Tetsuji Kawashima , Kunihiko Miyake , Shinji Ohta , Masazumi Shiozawa 2004-07-20
$878,000
6693855 Optical disc and optical disc apparatus Tetsuji Kawashima , Yukio Shishido , Kunihiko Miyake 2004-02-17
$1,230,000
6636461 Recording and/or reproducing method and apparatus having reciprocal time domain to binary conversion means Tetsuji Kawashima , Michihiko Iida 2003-10-21
$832,000
6600707 Optical disc and optical disc driving device — 2003-07-29
$498,000
6229772 Optical disc device and optical disc discriminating method Eiji Kumagai , Kenji Nagashima 2001-05-08
$1,479,000
5586098 Optical disc apparatus for controlling laser power for each zone of a zone record system Norio Nishida 1996-12-17
$142,000
