Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Mitsutoshi Watanabe — 47 Patents

IHIhi: 18 patents #12 of 1,178Top 2%
Mitsubishi Electric: 17 patents #1,334 of 25,717Top 6%
ICIshikawajima-Harima Heavy Industries Co.: 13 patents #4 of 611Top 1%
TKToshiba Tec Kabushiki Kaisha: 7 patents #421 of 1,664Top 30%
Kabushiki Kaisha Toshiba: 5 patents #5,683 of 21,451Top 30%
MAMaxell: 5 patents #120 of 437Top 30%
HMHitachi Maxell: 1 patents #659 of 1,211Top 55%
HEHitachi Maxell Energy: 1 patents #2 of 38Top 6%
Overall (All Time): #60,373 of 4,157,543Top 2%
47 Patents All Time

Issued Patents All Time

Showing 26–47 of 47 patents

Patent #TitleCo-InventorsDate
8287968 Coating film and coating-film forming method Akihiro Goto, Masahiro Okane, Kazushi Nakamura, Hiroyuki Teramoto, Hiroyuki Ochiai 2012-10-16
8221509 Battery and method for producing the same Ryoko Masuyoshi, Tetsuo Kawai, Toshiyuki Edamoto 2012-07-17
8162601 Surface treatment method and repair method Hiroyuki Ochiai, Takashi Furukawa, Issei Otera 2012-04-24
8128078 Jig Hiroyuki Ochiai, Takashi Furukawa 2012-03-06
8097131 Electrochemical machining method and electrochemical machining device Toshiyuki Matsuo, Kazuhiko Yoshiwaki, Yasuo Fujihara, Masaaki Inoue 2012-01-17
8086118 Image forming apparatus 2011-12-27
7918460 Rotating member and method for coating the same Hiroyuki Ochiai, Akihiro Goto, Masao Akiyoshi 2011-04-05
7915559 Electrode for electric discharge surface treatment, method for manufacturing electrode, and method for storing electrode Akihiro Goto, Masao Akiyoshi, Katsuhiro Matsuo, Hiroyuki Ochiai, Takashi Furukawa 2011-03-29
7910176 Electrode for discharge surface treatment, manufacturing method and evaluation method for electrode for discharge surface treatment, discharge surface treatment apparatus, and discharge surface treatment method Akihiro Goto, Masao Akiyoshi, Katsuhiro Matsuo, Hiroyuki Ochiai, Takashi Furukawa 2011-03-22
7892410 Discharge surface treatment method and discharge surface treatment apparatus Akihiro Goto, Masao Akiyoshi, Katsuhiro Matsuo, Hiroyuki Ochiai, Takashi Furukawa 2011-02-22
7834291 Electrode for electric discharge surface treatment, and method and apparatus for electric discharge surface treatment Akihiro Goto, Masao Akiyoshi, Katsuhiro Matsuo, Hiroyuki Ochiai, Takashi Furukawa 2010-11-16
7824159 Compressor, titanium-made rotor blade, jet engine and titanium-made rotor blade producing method Hiroyuki Ochiai, Akihiro Goto, Masao Akiyoshi 2010-11-02
7776409 Electrode for discharge surface treatment and method of evaluating the same, and discharge-surface-treating method Akihiro Goto, Masao Akiyoshi, Katsuhiro Matsuo, Hiroyuki Ochiai, Takashi Furukawa 2010-08-17
7763349 Protective coating and metal structure Hiroyuki Ochiai, Hiroki Yoshizawa, Takashi Furukawa, Issei Otera 2010-07-27
7723636 Method for repairing machine part, method for forming restored machine part, method for manufacturing machine part, gas turbine engine, electric discharge machine, method for repairing turbine component, and method for forming restored turbine component Hiroyuki Ochiai, Tatsuto Urabe, Kazuo Souno, Akihiro Goto, Masao Akiyoshi 2010-05-25
7713361 Metal product producing method, metal product, metal component connecting method, and connection structure Hiroyuki Ochiai, Tatsuto Urabe, Akihiro Goto, Masao Akiyoshi 2010-05-11
7691454 Electrical-discharge surface-treatment method using a metallic powder or metallic powder compound in combination with other elements as electrode Akihiro Goto, Masao Akiyoshi, Katsuhiro Matsuo, Hiroyuki Ochiai, Takashi Furukawa 2010-04-06
7641945 Electrical-discharge surface-treatment method Akihiro Goto, Masao Akiyoshi, Katsuhiro Matsuo, Hiroyuki Ochiai, Takashi Furukawa 2010-01-05
7537808 Electrode for electric discharge surface treatment, electric discharge surface treatment method and electric discharge surface treatment apparatus Akihiro Goto, Masao Akiyoshi, Hiroyuki Ochiai 2009-05-26
7537809 Rotating member and method for coating the same Hiroyuki Ochiai, Mikiya Arai, Shigeru Saburi, Tsuyoshi Yamakawa, Shogo Tsugumi +4 more 2009-05-26
6447323 Power source cable connector 2002-09-10
5541021 Alkaline cell Hiroshi Ishiuchi 1996-07-30