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USPTO Patent Rankings Data through Dec 31, 2025
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Itsuo Tanuma — 43 Patents

Bridgestone: 35 patents #27 of 2,860Top 1%
BLBridgestone Tire Company Limited: 8 patents #15 of 438Top 4%
UNUnknown: 2 patents #12,644 of 83,584Top 20%
Tokorozawa, JP: #24 of 1,041 inventorsTop 3%
Overall (All Time): #69,380 of 4,157,543Top 2%
43 Patents All Time
Itsuo Tanuma has been granted 43 US patents while listed as an inventor at Bridgestone. The first was granted in 1980 and the most recent in January 2010. Itsuo Tanuma ranks #69,380 of 4,157,543 US inventors in our database (top 1.7%). Patent records list Itsuo Tanuma in Tokorozawa, JP.

Patents per Year

Patents granted per year, 1980 to 2010Bar chart with a peak of 5 patents in 1997.peak 51980: 1 patents19801981: 1 patents1982: 1 patents1983: 1 patents19831985: 2 patents1986: 3 patents1987: 1 patents19871988: 1 patents1989: 1 patents1990: 2 patents19901991: 1 patents1992: 2 patents1994: 3 patents19941995: 1 patents1996: 2 patents1997: 5 patents19971998: 3 patents1999: 2 patents2000: 1 patents20002001: 3 patents2003: 1 patents2005: 1 patents20052006: 1 patents2008: 1 patents2009: 1 patents20092010: 1 patents2010

Issued Patents All Time

Showing 1–25 of 43 patents

Patent #TitleCo-InventorsDate
7646358 Image display device Reiji Hattori, Yoshitomo Masuda, Norio Nihei, Ryou Sakurai, Hajime Tamura +1 more 2010-01-12
7560135 Electromagnetic-wave shielding and light transmitting plate and manufacturing method thereof Hidefumi Kotsubo, Yasuhiro Morimura 2009-07-14
7321459 Image display device and method Yoshitomo Masuda, Gaku Yakushiji, Kazuya Murata, Norio Nihei, Koji Takagi +2 more 2008-01-22
7118936 Organic dye-sensitized metal oxide semiconductor electrode and its manufacturing method, and organic dye-sensitized solar cell Taichi Kobayashi, Masato Yoshikawa, Yoshinori Iwabuchi, Shingo Oono 2006-10-10
6882091 Electromagnetic-wave shielding and light transmitting plate and manufacturing method thereof Hidefumi Kotsubo, Yasuhiro Morimura 2005-04-19
6506090 Display panel and method of manufacturing electromagnetic-wave shielding and light transmitting plate Hidefumi Kotsubo, Yasuhiro Morimura 2003-01-14
6278827 Light transmission tubes Hideo Sugiyama, Masato Sugimachi, Minoru Ishiharada, Yasuhiro Morimura, Tatsuo Terahama +1 more 2001-08-21
6236797 Light transmitting tube Atsushi Hotta, Tatsuo Terahama 2001-05-22
6169836 Optical transmission tube and method for making the same Hideo Sugiyama, Minoru Ishiharada, Tatsuo Terahama, Yasuhiro Morimura 2001-01-02
6030108 Waterproof lighting apparatus Minoru Ishiharada, Kazuo Naito, Yasuhiko Matsumuro, Takao Aoki, Kiyoshi Koyama 2000-02-29
5982969 Optical transmission tube, making method, and linear illuminant system Hideo Sugiyama, Masato Sugimachi, Minoru Ishiharada, Yasuhiro Morimura, Tatsuo Terahama +1 more 1999-11-09
5933560 Branched type light transmission system Minoru Ishiharada, Atsushi Hotta 1999-08-03
5759698 Laminated glass Yasuhiro Morimura, Hidefumi Kotsubo 1998-06-02
5744534 Light scattering material Minoru Ishiharada, Kazuo Naito 1998-04-28
5737471 Optical waveguide tube Hideo Sugiyama, Masato Sugimachi, Atsushi Hotta, Minoru Ishiharada, Torao Hashimoto 1998-04-07
5692088 Optical waveguide tube Minoru Ishiharada, Hideo Sugiyama 1997-11-25
5684913 Optical waveguide tube and method of making Hideo Sugiyama, Masato Sugimachi, Masato Yoshikawa, Minoru Ishiharada, Kazuo Naito +1 more 1997-11-04
5681611 Light guide and method for making Masato Yoshikawa, Minoru Ishiharada, Kazuo Naito, Masato Sugimachi, Hideo Sugiyama 1997-10-28
5638480 Optical waveguide hose Minoru Ishiharada, Kazuo Naito 1997-06-10
5632835 Laminated glass and preparation thereof Hideyuki Niwa, Yasuhiro Morimura, Hiromi Ohtsuru, Kyoei Yoshida, Kazuo Naitoh 1997-05-27
5557702 Light guide comprising a methacrylic or acrylic acid resin core and a fluorocarbon resin clad Masato Yoshikawa, Minoru Ishiharada, Kazuo Naito, Masato Sugimachi, Hideo Sugiyama 1996-09-17
5547762 Sandwich glasses Hideyuki Niwa, Kiyomi Sasaki, Kyoei Yoshida, Kazuo Naito, Yasuhiro Morimura +1 more 1996-08-20
5425832 Surface treatment of fluoropolymer members and preparation of composite products therefrom Yukihiro Kusano, Masato Yoshikawa, Yukio Fukuura, Kazuo Naito, Yasuhiro Morimura +2 more 1995-06-20
5372887 UV-ray absorbing sandwich glass comprising a specific thermosetting resin composition Masashi Segawa, Kazuo Naito 1994-12-13
5352530 Transparent films and laminates having the same Hideo Takeichi, Hiromi Ohtsuru, Toshio Honda 1994-10-04