Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Yoshio Yamaguchi — 42 Patents

MBMitsuboshi Belting: 15 patents #4 of 333Top 2%
Fujitsu Limited: 9 patents #3,538 of 24,456Top 15%
SESeiko Epson: 7 patents #2,406 of 7,774Top 35%
JCJanome Sewing Machine Industry Co.: 3 patents #8 of 34Top 25%
JCJanome Sewing Machine Co.: 2 patents #82 of 229Top 40%
OCOkuno Chemical Industries Co.: 2 patents #8 of 77Top 15%
Panasonic: 1 patents #13,316 of 21,108Top 65%
EDEpson Imaging Devices: 1 patents #70 of 141Top 50%
FIFujifilm Business Innovation: 1 patents #3,981 of 5,238Top 80%
HSHarmonic Drive Systems: 1 patents #85 of 147Top 60%
SYSymetrix: 1 patents #45 of 73Top 65%
TCToyo Glass Co.: 1 patents #20 of 41Top 50%
UCUbukata Industries Co.: 1 patents #20 of 43Top 50%
Kabushiki Kaisha Toshiba: 1 patents #13,641 of 21,451Top 65%
Nagoya, JP: #166 of 6,680 inventorsTop 3%
Overall (All Time): #72,062 of 4,157,543Top 2%
42 Patents All Time
Yoshio Yamaguchi has been granted 42 US patents while listed as an inventor at Mitsuboshi Belting. The first was granted in 1985 and the most recent in August 2018. Yoshio Yamaguchi ranks #72,062 of 4,157,543 US inventors in our database (top 1.7%). Patent records list Yoshio Yamaguchi in Nagoya, JP.

Patents per Year

Patents granted per year, 1985 to 2018Bar chart with a peak of 6 patents in 1998.peak 61985: 4 patents19851986: 2 patents1987: 2 patents1988: 2 patents19881989: 1 patents1990: 1 patents1991: 1 patents19911994: 1 patents1995: 1 patents1996: 2 patents19961997: 3 patents1998: 6 patents1999: 1 patents19992000: 2 patents2001: 3 patents2003: 3 patents20032004: 1 patents2005: 3 patents2008: 1 patents20082010: 1 patents2018: 1 patents2018

Issued Patents All Time

Showing 1–25 of 42 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10056211 Heat-reactive switch Tomohiro Hori 2018-08-21
7839471 Transflective liquid crystal device having a wire serpentinely bypassing a light-shielding layer in an interpixel region Mutsumi Matsuo, Katsuhiro Imai, Tomohiko Kojima 2010-11-23
7382386 Image forming apparatus Yoshiki Matsuzaki 2008-06-03
6946679 Liquid crystal display device, manufacturing method therefor, and electronic apparatus Naonori Miwa, Keiji Takizawa, Takeyoshi Ushiki 2005-09-20
6919948 Liquid crystal panel, manufacturing method therefor, and electronic equipment Hideki Kaneko, Kimihiro Nomura, Chihiro Tanaka, Motohiro Kamijima 2005-07-19
6888605 Electro-optical device and electronic apparatus 2005-05-03
6704075 Color filter substrate, method of fabricating color filter substrate, liquid crystal device, method of fabricating liquid crystal device, and electronic apparatus Keiji Takizawa, Mutsumi Matsuo, Takeyoshi Ushiki 2004-03-09
6618100 Liquid crystal device, liquid crystal device manufacturing method and electronic apparatus Kazuo Oike, Naoki Makino 2003-09-09
6614498 Liquid-crystal display device and electronic equipment Chihiro Tanaka, Tadashi Tsuyuki, Takeyoshi Ushiki, Takashi Inami 2003-09-02
6573960 Liquid crystal device having opening in reflection film outside pixel area for evaluating color filter and light shield, its method, and apparatus Masaki Kobayashi, Keiji Takizawa, Chihiro Tanaka 2003-06-03
6301450 Electrophotography apparatus Takeo Kojima, Yoshihiro Watanabe, Fumihiro Itoh, Masahiro Wanou 2001-10-09
6174213 Fluorescent lamp and method of manufacturing same Carlos A. Paz de Araujo, Jolanta Bozena Celinska, Joseph D. Cuchiaro, Jeffrey W. Bacon, Larry D. McMillan +4 more 2001-01-16 $361,000
6171710 Surface treating agent for plating and base material with the plating adhered thereto Masayuki Ogino, Shigehiko Hayashi, Masahito Kawahara, Kazuo Goto, Toru Noguchi 2001-01-09
6128463 Image forming device Yoshiya Matsumoto, Shigeo Nonoyama, Tetsuya Takei, Nobuo Kuwabara, Hiroshi Kera +2 more 2000-10-03
6119553 Rotation transmitting device Toshimi Yamagishi, Yukio Sawada 2000-09-19
5976628 Copper conductor paste and production method of copper conductor film Masahito Kawahara, Toru Noguchi, Yoshifumi Yamashita, Yoshito Nokami 1999-11-02
5852757 Electrophotographic image forming apparatus having a device for recovering residual toner Toshio Tooda, Nobuo Kuwabara, Mituru Sato, Haruyasu Watanabe, Akira Nagahara +5 more 1998-12-22
5848343 Electrophotographic image-forming apparatus with uniform toner usage control Takefumi Takahashi, Shizuo Takano, Hiroshi Kera, Akira Nagahara, Yoshiya Ishiyama +2 more 1998-12-08
5845184 Developing unit having improved toner density control Akira Nagahara, Shigenobu Utaka, Toshio Tooda, Haruyasu Watanabe, Sachio Sasaki +4 more 1998-12-01
5807508 Copper conductor paste and production method of copper conductor film Masahito Kawahara, Toru Noguchi, Yoshifumi Yamashita, Yoshito Nokami 1998-09-15
5778285 Image forming apparatus for collecting residual toner from a drum using an AC voltage Akira Nagahara, Sachio Sasaki, Mitsuhito Furukawa, Shigenobu Utaka, Mitsuru Sato +3 more 1998-07-07
5731075 Colorant for a transparent substrate and method of making the colorant Kazuo Goto, Susumu Murakami, Shigehiko Hayashi, Koichi Sayo, Toru Noguchi +1 more 1998-03-24
5679466 Ultrafine particle dispersed glassy material and method Toru Noguchi, Kazuo Goto, Sigehiko Hayashi, Masahito Kawahara, Susumu Murakami +1 more 1997-10-21
5678143 Image forming apparatus for collecting residual toner from a drum using an AC voltage Akira Nagahara, Sachio Sasaki, Mitsuhito Furukawa, Shigenobu Utaka, Mitsuru Sato +3 more 1997-10-14
5597614 Ultrafine particle dispersed glassy material and method Toru Noguchi, Kazuo Goto, Sigehiko Hayashi, Masahito Kawahara, Susumu Murakami +1 more 1997-01-28