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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Ryozo Takeuchi — 24 Patents

Hitachi: 18 patents #2,067 of 28,497Top 8%
HHHitachi High-Technologies: 3 patents #1,010 of 1,917Top 55%
RTRenesas Technology: 2 patents #1,374 of 3,337Top 45%
HMHitachi Medical: 1 patents #371 of 680Top 55%
Hitachi, JP: #181 of 2,929 inventorsTop 7%
Overall (All Time): #168,038 of 4,157,543Top 5%
24 Patents All Time
Ryozo Takeuchi has been granted 24 US patents while listed as an inventor at Hitachi. The first was granted in 1986 and the most recent in February 2014. Ryozo Takeuchi ranks #168,038 of 4,157,543 US inventors in our database (top 4.0%). Patent records list Ryozo Takeuchi in Hitachi, JP.

Patents per Year

Patents granted per year, 1986 to 2014Bar chart with a peak of 3 patents in 1999.peak 31986: 1 patents19861989: 1 patents1993: 1 patents19931995: 1 patents1996: 1 patents19961997: 1 patents1999: 3 patents19992001: 2 patents2002: 1 patents20022003: 2 patents2004: 2 patents20042007: 2 patents2008: 1 patents20082009: 1 patents2010: 1 patents20102011: 1 patents2012: 1 patents20122014: 1 patents2014

Issued Patents All Time

Showing 1–24 of 24 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
8659243 Charged particle accelerator Hiroshi Morita, Toshiyuki Yokosuka 2014-02-25
8280006 X-ray tube Hiroshi Morita, Yoshitaka Seki, Yoshiaki Tsumuraya 2012-10-02
8067907 Charged particle accelerator Hiroshi Morita, Toshiyuki Yokosuka 2011-11-29 $168,000
7777194 Charged particle beam apparatus Hiroshi Morita, Ayumu Hatanaka 2010-08-17 $78,000
7557483 Rotating electrical machine and manufacturing method thereof Takashi Yasuhara, Takayuki Koizumi, Koji Obata, Hidemitsu Kobayashi 2009-07-07 $76,000
7355127 Printed wiring board and electronic device using the same Junpei Kusukawa 2008-04-08 $183,000
7250766 Gradient coil apparatus for magnetic resonance imaging system Hiroshi Morita, Akira Kurome, Takeshi Yatsuo, Hirotaka Takeshima 2007-07-31 $225,000
7236569 X-ray tube Yoshiaki Tsumuraya 2007-06-26 $246,000
6791182 Semiconductor device Junpei Kusukawa, Toshiaki Ishii, Hiromichi Suzuki, Fujio Ito, Takafumi Nishita +2 more 2004-09-14
6730255 Method of manufacture of resin block Junpei Kusukawa, Koji Obata 2004-05-04 $251,000
6649847 Resin block insulating system Junpei Kusukawa, Koji Obata 2003-11-18 $216,000
6504110 Insulating circuit board and power semiconductor apparatus employing the same Junpei Kusukawa 2003-01-07 $77,000
6337616 Ignition coil for internal-combustion engine Takanori Sato 2002-01-08 $223,000
6237578 Ignition coil for use in internal combustion engine Takanori Satoo, Kazutoshi Kobayashi 2001-05-29 $586,000
6213109 Ignition coil for use in internal combustion engine Takanori Satoo, Kazutoshi Kobayashi 2001-04-10 $432,000
6008818 Method and apparatus for producing animation image Koji Amakawa 1999-12-28 $1,272,000
6005589 Method and apparatus for representing motion of multiple-jointed object, computer graphic apparatus, and robot controller Munetoshi Unuma 1999-12-21 $632,000
5870096 Method and apparatus for displaying images Kenichi Anjyo, Tsuneya Kurihara 1999-02-09 $440,000
5680532 Method and apparatus for producing animation image Koji Amakawa 1997-10-21 $119,000
5483630 Method and apparatus for representing motion of multiple-jointed object, computer graphic apparatus, and robot controller Munetoshi Unuma 1996-01-09 $132,000
5404426 Method of displaying hair style and apparatus for the same Yoshiaki Usami, Kenichi Anjyo 1995-04-04 $39,000
5267154 Biological image formation aiding system and biological image forming method Masao Yanaka, Kenichi Anjyo, Yoshiaki Usami, Munetoshi Unuma, Akio Yajima +4 more 1993-11-30 $66,000
4888648 Electronic album Yasuaki Suzuki, Tetsuya Nagata, Eturo Hirose 1989-12-19 $30,000
4590489 Thermal head Makoto Tsumura 1986-05-20 $77,000