Top 100 Key Players companies in Gas heater by Most Patent Citation in the Japan in 2021 – Discovery

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The Gas heater top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Citation Gas heater Key Players in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2021, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.

1	Mitsubishi Kogyo KK	Japan		patent citation: 330
2	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	patent citation: 246
3	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	patent citation: 205
4	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	patent citation: 205
5	Rinnai Corp.	Aichi, Japan	Solar water heating,Electronics,Thermal energy, ...[+2]	patent citation: 186
6	IHI Power Systems Co., Ltd.	Tokyo, Japan	Turbine,Gas engine,Manufacturing engineering, ...[+2]	patent citation: 147
7	Tokyo Gas Co., Ltd.	Tokyo, Japan	Natural gas,Hydrogen chloride,Petroleum industry, ...[+2]	patent citation: 102
8	IHI Corp.	Tokyo, Japan	Turbocharger,Manufacturing engineering,Turbine, ...[+2]	patent citation: 93
9	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	patent citation: 82
10	Osaka Gas Co., Ltd.	Osaka, Japan	Natural gas,Activated carbon,Petroleum industry, ...[+2]	patent citation: 82
11	NIPPON STEEL Stainless Steel Corp.	Tokyo, Japan	Mill,Metal,Mining engineering, ...[+1]	patent citation: 75
12	Mitsubishi Power Ltd.	Kanagawa, Japan	Turbine,Control system,Renewable energy, ...[+2]	patent citation: 60
13	The Kansai Electric Power Co., Inc.	Osaka, Japan	Telecommunications,Energy management,Electric utility, ...[+2]	patent citation: 58
14	DENSO Corp.	Aichi, Japan	Automotive engineering,Industrial robot,Programmable logic controller, ...[+2]	patent citation: 57
15	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	patent citation: 55
16	Fujifilm Business Innovation Corp.	Chiba, Japan	Electronics,Inkjet printing,Vertical-cavity surface-emitting laser, ...[+2]	patent citation: 55
17	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	patent citation: 51
18	Tosoh Corp.	Tokyo, Japan	Petrochemical,Chemical engineering,Immunoprotein, ...[+2]	patent citation: 49
19	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	patent citation: 46
20	Honda Motor Co., Ltd.	Tokyo, Japan	Automotive engineering,Manufacturing engineering,Sport utility vehicle, ...[+2]	patent citation: 43
21	Mitsubishi Hitachi Power Systems	Kanagawa, Japan	Control system	patent citation: 40
22	Kawasaki Steel Corp.	Japan		patent citation: 36
23	NKK Corp.	Tokyo, Japan	Natural resource management,Mining engineering	patent citation: 32
24	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		patent citation: 31
25	Mitsui E&S Holdings Co., Ltd.	Tokyo, Japan	Public transport,Hydrogen compressor,Reciprocating compressor, ...[+2]	patent citation: 27
26	Kyushu Electric Power Co., Inc.	Fukuoka, Japan	Electronics,Nuclear reactor,Natural uranium, ...[+2]	patent citation: 25
27	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	patent citation: 25
28	Iwatani Corp.	Tokyo, Japan	Petroleum,Petroleum industry,Helium, ...[+2]	patent citation: 23
29	Mitsubishi Kakoki Kaisha, Ltd.	Kanagawa, Japan	Water treatment,Manufacturing engineering,Industrial effluent, ...[+2]	patent citation: 22
30	DAIKIN INDUSTRIES Ltd.	Osaka, Japan	Air conditioning,Refrigeration,Mechanical engineering, ...[+2]	patent citation: 21
31	Daikin Airconditioning France SAS	Osaka, Japan	Industrial engineering,Fluorochemical industry,Air conditioning, ...[+1]	patent citation: 21
32	Hakusan MFG Co., Ltd.	Tokyo, Japan		patent citation: 21
33	Kyushu Tetsudo Kiki Seizo KK	Japan		patent citation: 21
34	STARTUP Japan Marine United Corp.	Kanagawa, Japan	Offshore wind power,Wind power,Mechanical engineering, ...[+1]	patent citation: 20
35	Evonik Degussa Japan Co., Ltd.	Tokyo, Japan		patent citation: 20
36	Daiwa Kosan Co. Ltd.	Japan		patent citation: 20
37	Nittetsu Plant Designing Corp.	Japan		patent citation: 19
38	Sumitomo Heavy Industries, Ltd.	Tokyo, Japan	Sewage treatment,Proton therapy,Cryocooler, ...[+2]	patent citation: 18
39	Hitachi Zosen Corp.	Osaka, Japan	Mechanical engineering,Waste-to-energy,Environmental protection, ...[+2]	patent citation: 18
40	Espec Corp.	Osaka, Japan	Climate system,Computer hardware,Electronics, ...[+2]	patent citation: 17
41	NGK SPARK PLUG CO., LTD.	Aichi, Japan	Spark plug,Automotive engineering,Ceramic art, ...[+2]	patent citation: 15
42	Kojima Instruments, Inc.	Japan	Mass flow controller	patent citation: 15
43	Yoshino Co. Ltd.	Japan		patent citation: 15
44	Kawasaki Heavy Industries Ltd.	Kyoto, Japan	Turbine,Mechanical engineering,Manufacturing engineering, ...[+2]	patent citation: 14
45	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	patent citation: 14
46	Kajima Corp.	Tokyo, Japan	Civil engineering,Construction engineering,Real estate development, ...[+2]	patent citation: 13
47	Japan Engineering Co., Ltd.	Kanagawa, Japan	Semiconductor,Automation,Manufacturing engineering, ...[+2]	patent citation: 13
48	Tottori Sanyo Electric Co., Ltd.	Tottori, Japan	Display device,Electronics,Projector	patent citation: 13
49	Nikon Corp.	Tokyo, Japan	Microscope,Photography,Motion capture, ...[+2]	patent citation: 12
50	Paloma Co., Ltd.	Aichi, Japan	Microwave,Vacuum cleaner,Cook stove, ...[+2]	patent citation: 12
51	Hino Motors, Ltd.	Tokyo, Japan	Truck,Public transport,Gasoline, ...[+2]	patent citation: 12
52	Ebara Corp.	Tokyo, Japan	Vacuum pump,Manufacturing engineering,Turbine, ...[+2]	patent citation: 10
53	SCREEN Holdings Co., Ltd.	Kyoto, Japan	Semiconductor,Wafer fabrication,Flat panel display, ...[+2]	patent citation: 10
54	Nippon Carbon Co., Ltd.	Tokyo, Japan	Graphite,Industrial engineering,3D printing, ...[+2]	patent citation: 10
55	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	patent citation: 9
56	Aica Kogyo Co., Ltd.	Aichi, Japan	Adhesive,Synthetic rubber,Chemical engineering, ...[+2]	patent citation: 9
57	Senju Metal Industry Co., Ltd.	Tokyo, Japan	Solder ball,Mining engineering,Natural resource management, ...[+2]	patent citation: 9
58	Olympus Corp.	Tokyo, Japan	Microscope,Endoscopy,Software, ...[+2]	patent citation: 8
59	TOTO Ltd.	Fukuoka, Japan	Bathtub,Cistern,Sink (computing), ...[+2]	patent citation: 8
60	Pacific Industrial Co., Ltd.	Gifu, Japan	Stamping,Automotive safety,Automotive engineering, ...[+2]	patent citation: 8
61	Kobayashi Sangyo Co. Ltd.	Japan		patent citation: 8
62	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	patent citation: 7
63	JFE Engineering Corp.	Tokyo, Japan	Environmental protection,Renewable energy,Health care, ...[+2]	patent citation: 7
64	Sumitomo Metal Industries Ltd.	Osaka, Japan	Metal,Semiconductor,Casting, ...[+2]	patent citation: 7
65	Yokoyama KK	Tokyo, Japan		patent citation: 7
66	Mitsubishi Nagasaki Machinery Mfg. Co., Ltd.	Nagasaki, Japan	Turbine,Electronics,Power transmission	patent citation: 7
67	Panasonic Intellectual Property Management Co. Ltd.	Osaka, Japan		patent citation: 7
68	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	patent citation: 6
69	Mitsubishi Corp.	Tokyo, Japan	Lifestyle business,Electricity,Raw material, ...[+2]	patent citation: 5
70	Fujitsu Ltd.	Tokyo, Japan	Cloud computing,Enterprise software,Information technology management, ...[+2]	patent citation: 5
71	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	patent citation: 5
72	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	patent citation: 5
73	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	patent citation: 5
74	Tornex, Inc.	Japan		patent citation: 5
75	Asahi Seisakusho Co., Ltd.	Kanagawa, Japan	Washer,Electronics,Laundry	patent citation: 5
76	Toyota Industries Corp.	Aichi, Japan	Textile,Software,Automotive engineering, ...[+2]	patent citation: 4
77	ASAHI YUKIZAI Corp.	Miyazaki, Japan	Piping,Plastics engineering,Industrial engineering, ...[+2]	patent citation: 4
78	Kawata Mfg. Co., Ltd.	Osaka, Japan	Forging,Manufacturing engineering,Silo, ...[+2]	patent citation: 4
79	Hitachi Cable Ltd.	Tokyo, Japan	Electronics,Metal,Optical fiber, ...[+2]	patent citation: 4
80	Koyo Sangyo Co. Ltd.	Yamaguchi, Japan	Forestry	patent citation: 4
81	Hitachi Engineering & Services Co., Ltd.	Tokyo, Japan	Electronics	patent citation: 4
82	Iwao Jiki Kogyo Co. Ltd.	Japan		patent citation: 4
83	FIGARO Engineering, Inc.	Osaka, Japan	Semiconductor,Pressure sensor,Avionics, ...[+2]	patent citation: 4
84	Gadelius KK	Tokyo, Japan	Food processing	patent citation: 4
85	TaiSei-Shell Co., Ltd.	Japan		patent citation: 4
86	Chubu Electric Power Co., Inc.	Aichi, Japan	Electricity,Electric utility,Electric power transmission, ...[+2]	patent citation: 3
87	Toyobo Co., Ltd.	Osaka, Japan	Chemical engineering,Synthetic rubber,Membrane, ...[+2]	patent citation: 3
88	Saginomiya Seisakusho, Inc.	Tokyo, Japan	Refrigeration,Automation,Manufacturing engineering, ...[+2]	patent citation: 3
89	ITO Co., Ltd.	Saitama, Japan	Medicine,Clinical therapy,Bone fracture, ...[+2]	patent citation: 3
90	Nippon Pulse Motor Co., Ltd.	Tokyo, Japan	Electronic component,Electrical equipment,Electronics, ...[+2]	patent citation: 3
91	Kajiwara Kogyo Co. Ltd.	Japan		patent citation: 3
92	Nikko Machinery Co. Ltd.	Osaka, Japan	Electronic component,Computer hardware,Electronics, ...[+1]	patent citation: 3
93	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	patent citation: 2
94	Murata Manufacturing Co. Ltd.	Kyoto, Japan	Semiconductor,Electronics,Electronic component, ...[+2]	patent citation: 2
95	Electric Power Development Co., Ltd.	Tokyo, Japan	Power transmission,Wind power,Electric power transmission, ...[+2]	patent citation: 2
96	Mitsui Mining & Smelting Co., Ltd.	Tokyo, Japan	Precious metal,Metal,Cathode material, ...[+2]	patent citation: 2
97	Kurimoto Ltd.	Osaka, Japan	Ductile iron pipe,Ductile iron,Metal, ...[+2]	patent citation: 2
98	Chiyoda Corp.	Kanagawa, Japan	Construction engineering,Information technology,Environmental engineering, ...[+2]	patent citation: 2
99	Chiyoda Co., Ltd.	Tokyo, Japan	Casual	patent citation: 2
100	Chofu Seisakusho Co., Ltd.	Yamaguchi, Japan	Heat pump,Solar energy,Water supply, ...[+2]	patent citation: 2