Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
NB

Noboru Baba — 25 Patents

Hitachi: 24 patents #1,341 of 28,497Top 5%
HMHitachi Medical: 2 patents #260 of 680Top 40%
HCHitachi Powdered Metals Co.: 2 patents #73 of 246Top 30%
HSHitachi Automotive Systems: 1 patents #965 of 1,636Top 60%
HCHitachi Car Engineering Co.: 1 patents #275 of 465Top 60%
TCToyo Tanso Co.: 1 patents #72 of 192Top 40%
HCHitachi Haramachi Electronics Co.: 1 patents #22 of 64Top 35%
Hitachiota, JP: #12 of 154 inventorsTop 8%
Overall (All Time): #158,593 of 4,157,543Top 4%
25 Patents All Time
Noboru Baba has been granted 25 US patents while listed as an inventor at Hitachi. The first was granted in 1989 and the most recent in August 2017. Noboru Baba ranks #158,593 of 4,157,543 US inventors in our database (top 3.8%). Patent records list Noboru Baba in Hitachiota, JP.

Patents per Year

Patents granted per year, 1989 to 2017Bar chart with a peak of 3 patents in 2002.peak 31989: 1 patents19891990: 2 patents1994: 1 patents19941997: 1 patents2000: 1 patents20002001: 1 patents2002: 3 patents20022003: 1 patents2004: 3 patents20042005: 3 patents2006: 1 patents20062007: 1 patents2009: 1 patents20092010: 2 patents2012: 2 patents20122017: 1 patents2017

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9745646 Electric air flow control device for internal combustion engines Daisuke Hiranuma, Masahiro Mokuo, Kazuo Ojima 2017-08-29
8294071 Microwave irradiation apparatus Masami Taguchi, Tomokatsu Oguro, Toshio Ogura, Masumi Kuga 2012-10-23
8222579 Microwave irradiation system Masami Taguchi, Kazutaka Okamoto, Tomokatsu Oguro, Toshio Ogura, Masumi Kuga 2012-07-17
7704449 Electrode, electrical contact and method of manufacturing the same Shigeru Kikuchi, Masato Kobayashi, Kenji Tsuchiya 2010-04-27 $84,000
7662208 Electrical contacts for vacuum circuit breakers and methods of manufacturing the same Shigeru Kikuchi, Ayumu Morita, Masato Kobayashi, Satoru Kajiwara 2010-02-16 $54,000
7588650 High-temperature member for use in gas turbine Kazuya Nishi 2009-09-15 $88,000
7230304 Electric contacts and method of manufacturing thereof, and vacuum interrupter and vacuum circuit breaker using thereof Shigeru Kikuchi, Masato Kobayashi, Kenji Tsuchiya, Takashi Sato 2007-06-12 $194,000
7128528 Bearings for CO2 refrigerant compressor use, compressor using the same, and applications of the same Hiroshi Takayasu, Shouichi Nakashima, Tadashi Iizuka, Toshiaki Yamanaka, Hiroaki Ogura +2 more 2006-10-31 $93,000
6918548 Electronic fuel injector Katsuyoshi Terakado, Mizuho Yokoyama, Arata Kagiyama, Masahiro Souma 2005-07-19 $108,000
6895992 Fuel pump for inter-cylinder direct fuel injection apparatus Shizuka Yamaguchi, Masaya Takahashi, Katsuyoshi Terakado, Arata Kagiyama, Masayoshi Kotaki +5 more 2005-05-24 $73,000
6860255 Fuel pump and direct fuel injection engine Shizuka Yamaguchi, Toshiaki Nagayama, Katsuyoshi Terakado, Arata Kagiyama, Hideki Machimura +4 more 2005-03-01 $144,000
6793468 Turbo-charger for internal-combustion engine Kazuo Ojima, Toshikatsu Akiyama, Katsuhiro Komuro, Tetsuo Udagawa 2004-09-21 $197,000
6765167 Electric contact member and production method thereof Shigeru Kikuchi, Masaya Takahashi, Masato Kobayashi, Yoshitomo Goto, Yasuaki Suzuki +1 more 2004-07-20 $267,000
6752332 Electronic fuel injection valve Katsuyoshi Terakado, Arata Kagiyama, Shizuka Yamaguchi, Masahiro Souma, Shuichi Shimizu 2004-06-22 $211,000
6543424 Fuel pump, in-cylinder direct injection type internal combustion engine using the same and surface treatment method Shizuka Yamaguchi, Katsuyoshi Terakado, Arata Kagiyama, Hideki Machimura, Yukio Takahashi +5 more 2003-04-08 $91,000
6487275 Anode target for X-ray tube and X-ray tube therewith Masao Shimizu, Motomichi Doi, Yuzo Kozono, Kunihiro Maeda, Masatoshi Seki 2002-11-26 $102,000
6437275 Vacuum circuit-breaker, vacuum bulb for use therein, and electrodes thereof Shigeru Kikuchi, Masato Kobayashi, Katsuhiro Komuro, Toru Tanimizu, Yoshimi Hakamata +2 more 2002-08-20 $103,000
6344273 Treatment solution for forming insulating layers on magnetic particles process for forming the insulating layers, and electric device with a soft magnetic powder composite core Yuichi Satsu, Hideaki Katayama, Yuzo Ito, Akio Takahashi, Chikara Tanaka +4 more 2002-02-05 $226,000
6248969 Vacuum circuit breaker, and vacuum bulb and vacuum bulb electrode used therefor Katsuhiro Komuro, Yoshitaka Kojima, Ryo Hiraga, Toru Tanimizu, Yoshimi Hakamata +3 more 2001-06-19 $413,000
6054219 Process for forming insulating layers on soft magnetic powder composite core from magnetic particles Yuichi Satsu, Hideaki Katayama, Yuzo Ito, Akio Takahashi, Chikara Tanaka +4 more 2000-04-25 $882,000
5621243 Semiconductor device having thermal stress resistance structure Hisanori Okamura, Masahiko Sakamoto, Hirosi Akiyama, Ryuichi Saito, Yoshihiko Koike +4 more 1997-04-15 $99,000
5296057 High abrasion resistant aluminum bronze alloy, and sliding members using same Katsuhiko Komuro, Masateru Suwa, Mitsuo Chigasaki, Yozo Kumagai, Mashayoshi Kainuma +1 more 1994-03-22 $65,000
4939762 Target for X-ray tube as well as method of manufacturing the same, and X-ray tube Yusaku Nakagawa, Masatake Fukushima, Masateru Suwa, Ichiro Inamura 1990-07-03 $26,000
4891831 X-ray tube and method for generating X-rays in the X-ray tube Akira Tanaka, Satoshi Shimada, Kazuji Yamada, Yusaku Nakagawa, Motohisa Nishihara +3 more 1990-01-02 $47,000
4846541 Interference film filter and an optical waveguide and a method for producing the same Yuuji Miura 1989-07-11 $64,000