Top 100 Key Players companies in Ionic bonding by Highest Patent Value in the Japan in 2021 – Discovery

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The Ionic bonding top 100 is Discovery PatSnap’ annual ranking of the top 100 Highest Patent Value Ionic bonding 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.

Ionic bonding is a type of chemical bonding that involves the electrostatic attraction between oppositely charged ions, and is the primary interaction occurring in ionic compounds. It is one of the main bonds along with Covalent bond and Metallic bonding. Ions are atoms that have either gained or lost one or more electrons. Ions that have gained an electron are negatively charged. They are anions. Ions that have lost an electron are positively charged. They are cations. This transfer of electrons is known as electrovalence in contrast to covalence. In the simplest case, the cation is a metal atom and the anion is a nonmetal atom, but these ions can be of a more complex nature, e.g. molecular ions like NH⁺₄ or SO²⁻₄. In simpler words, an ionic bond is the transfer of electrons from a metal to a non-metal in order to obtain a full valence shell for both atoms.

Ranking Year:

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Ranking:

1	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	Avg patent value: 3.21 M
2	Nippon Shokubai Co., Ltd.	Tokyo, Japan	Polymer,Acrylic acid,Chemical engineering, ...[+2]	Avg patent value: 3.05 M
3	Toyo Seikan Group Holdings Ltd.	Tokyo, Japan	Aluminum substrate,Food packaging,Metal, ...[+2]	Avg patent value: 2.56 M
4	Dainichiseika Color & Chemicals Mfg. Co., Ltd.	Tokyo, Japan	Pigment,Chemical engineering,Polymer, ...[+2]	Avg patent value: 2.13 M
5	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	Avg patent value: 1.75 M
6	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	Avg patent value: 957,077
7	Nissan Chemical Corp.	Tokyo, Japan	Pesticide,Meiji period,Fertilizer, ...[+2]	Avg patent value: 950,000
8	JSR Corp.	Tokyo, Japan	Synthetic rubber,Natural rubber,Elastomer, ...[+2]	Avg patent value: 790,000
9	LINTEC Corp.	Tokyo, Japan	Adhesive materials,Industrial engineering,Pressure sensitive, ...[+2]	Avg patent value: 770,000
10	Japan Exlan Co., Ltd.	Japan		Avg patent value: 661,000
11	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	Avg patent value: 650,000
12	Fuji Electronics Co., Ltd.	Tokyo, Japan	Semiconductor,Microcomputer,Electronic component, ...[+2]	Avg patent value: 559,000
13	National Institute for Materials Science IAI	Ibaraki, Japan	Metal	Avg patent value: 559,000
14	Fuji Electric FA Components & SYstems Co., Ltd.	Tokyo, Japan	Semiconductor,Industrial engineering,Smart grid, ...[+2]	Avg patent value: 559,000
15	Nippon Nyukazai Co. Ltd.	Tokyo, Japan	Agriculture,Chemical engineering,Pesticide, ...[+2]	Avg patent value: 451,800
16	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	Avg patent value: 400,666
17	Ajinomoto Co., Inc.	Tokyo, Japan	Seasoning,Amino acid,Food processing, ...[+2]	Avg patent value: 385,500
18	Shiseido Co., Ltd.	Tokyo, Japan	Cosmetics,Elixir,Personal Care Product, ...[+2]	Avg patent value: 370,000
19	Japan Display, Inc.	Tokyo, Japan	Semiconductor,Electronic visual display,Navigation system, ...[+2]	Avg patent value: 340,000
20	Kao Corp.	Tokyo, Japan	Cosmetics,Health care,Hair conditioner, ...[+2]	Avg patent value: 333,400
21	CMET, Inc.	Fukushima, Japan	3D printing,Lithography,Rapid prototyping, ...[+2]	Avg patent value: 310,000
22	San-Apro Ltd.	Kyoto, Japan	Organic synthesis,Drug	Avg patent value: 310,000
23	Toyobo Co., Ltd.	Osaka, Japan	Chemical engineering,Synthetic rubber,Membrane, ...[+2]	Avg patent value: 303,333
24	Mitsubishi Paper Mills Ltd.	Tokyo, Japan	Paperboard,Thermal paper,3D printing, ...[+2]	Avg patent value: 300,000
25	KURABO INDUSTRIES LTD.	Osaka, Japan	Textile,Textile (markup language),Vacuum insulated panel, ...[+2]	Avg patent value: 291,500
26	Sumitomo Rubber Industries, Ltd.	Kyoto, Japan	Rubber material,Plastics engineering,Radial tire, ...[+2]	Avg patent value: 177,500
27	Murata Manufacturing Co. Ltd.	Kyoto, Japan	Semiconductor,Electronics,Electronic component, ...[+2]	Avg patent value: 140,000
28	NBC Meshtec, Inc.	Tokyo, Japan	Medical equipment,Web service,Chemical engineering, ...[+2]	Avg patent value: 82,000
29	Sekisui Chemical Co., Ltd.	Osaka, Japan	Synthetic rubber,Industrial engineering,Polyvinyl chloride, ...[+2]	Avg patent value: 73,000
30	NICHIAS Corp.	Tokyo, Japan	Thermal insulation,Industrial engineering,Gasket, ...[+2]	Avg patent value: 61,000
31	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	Avg patent value: 59,000
32	Nippon Zeon Co., Ltd.	Tokyo, Japan	Chemical engineering,Solid-state battery,Supercapacitor, ...[+1]	Avg patent value: 59,000
33	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	Avg patent value: 55,000
34	OSG Corp. (6136)	Aichi, Japan	Manufacturing engineering,Mechanical engineering,Automation, ...[+2]	Avg patent value: 55,000
35	Toyo Ink SC Holdings Co., Ltd.	Hokkaido, Japan	Pigment,Manufacturing engineering,Coating, ...[+2]	Avg patent value: 54,000
36	Toyocolor Co., Ltd.	Tokyo, Japan	Industrial engineering,Pigment,Phthalocyanine, ...[+2]	Avg patent value: 54,000
37	DKS Co., Ltd.	Kyoto, Japan	Chemical engineering,Coating,Industrial engineering, ...[+2]	Avg patent value: 53,250
38	Koatsu Gas Kogyo Co., Ltd.	Osaka, Japan	Industrial gas,Adhesive,Acetylene, ...[+2]	Avg patent value: 53,000
39	Suzuka Fine Co., Ltd.	Mie, Japan	Industrial engineering,Varnish,Coating	Avg patent value: 53,000
40	Kyocera Corp.	Kyoto, Japan	Semiconductor,Electronics,Telecommunications, ...[+2]	Avg patent value: 48,000
41	Fujita Corp.	Tokyo, Japan	Land utilization,Demolition,Construction engineering, ...[+2]	Avg patent value: 45,000
42	Furukawa Electric Co., Ltd.	Tokyo, Japan	Optical fiber,Renewable energy,Optoelectronics, ...[+2]	Avg patent value: 39,000
43	Nippon Zoki Pharmaceutical Co. Ltd.	Osaka, Japan	Medicine,Clinical trial,Analgesic, ...[+2]	Avg patent value: 36,000
44	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	Avg patent value: 35,000
45	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	Avg patent value: 31,500
46	Nippon Paper Industries Co., Ltd.	Tokyo, Japan	Paperboard,Forestry,Paper mill, ...[+2]	Avg patent value: 30,750
47	Daio Seishi KK	Japan		Avg patent value: 26,000
48	Nippon Soda Co., Ltd.	Tokyo, Japan	Pesticide,Fungicide,Chemical engineering, ...[+2]	Avg patent value: 20,075
49	Rikkyo Educational Corp.	Japan		Avg patent value: 20,075
50	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	Avg patent value: 16,000
51	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	Avg patent value: 13,000
52	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	Avg patent value: 3,700
53	TDK Corp.	Tokyo, Japan	Electronic component,Ceramic capacitor,Electronics, ...[+2]	Avg patent value: 3,700
54	Nisshinbo Holdings, Inc.	Tokyo, Japan	Yarn,Fiber,Brake pad, ...[+2]	Avg patent value: 3,700
55	Sumitomo Wiring Systems Ltd.	Mie, Japan	High voltage,Electronics,Power steering, ...[+2]	Avg patent value: 3,700
56	NF Holdings Corp.	Kanagawa, Japan	Computer hardware,Electronics,Power control, ...[+2]	Avg patent value: 3,700
57	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	Avg patent value: 3,700
58	Nisshinbo Textile Inc.	Tokyo, Japan	Yarn,Fiber,Textile (markup language), ...[+1]	Avg patent value: 3,700
59	Autonetworks Technologies Ltd.	Japan		Avg patent value: 3,700
60	JFE Holdings, Inc.	Tokyo, Japan	Materials science,Product design,Carbon steel, ...[+2]	Avg patent value: 3,600
61	JFE Steel Corp.	Tokyo, Japan	Irone,Mining engineering,Natural resource management, ...[+2]	Avg patent value: 3,600
62	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	Avg patent value: 0
63	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	Avg patent value: 0
64	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	Avg patent value: 0
65	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	Avg patent value: 0
66	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	Avg patent value: 0
67	DENSO Corp.	Aichi, Japan	Automotive engineering,Industrial robot,Programmable logic controller, ...[+2]	Avg patent value: 0
68	Nissan Motor Co., Ltd.	Kanagawa, Japan	Truck,Public transport,Automotive engineering, ...[+2]	Avg patent value: 0
69	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	Avg patent value: 0
70	Sumitomo Chemical Co., Ltd.	Tokyo, Japan	Petrochemical,Agriculture,Pesticide, ...[+2]	Avg patent value: 0
71	Nippon Telegraph & Telephone Corp.	Tokyo, Japan	Telecommunications,Cloud database,Data center, ...[+2]	Avg patent value: 0
72	Air Water, Inc.	Osaka, Japan	Industrial gas,Enterprise software,Nitrogen, ...[+2]	Avg patent value: 0
73	Konica Minolta, Inc.	Tokyo, Japan	Medical imaging,Attractiveness,Product group, ...[+2]	Avg patent value: 0
74	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	Avg patent value: 0
75	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	Avg patent value: 0
76	Toyota Industries Corp.	Aichi, Japan	Textile,Software,Automotive engineering, ...[+2]	Avg patent value: 0
77	UBE Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Coal mining, ...[+2]	Avg patent value: 0
78	Teijin Ltd.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polycarbonate, ...[+2]	Avg patent value: 0
79	Oji Holdings Corp.	Tokyo, Japan	Containerboard,Paperboard,Thermal paper, ...[+2]	Avg patent value: 0
80	Kaneka Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polyvinyl chloride, ...[+2]	Avg patent value: 0
81	Terumo Corp.	Tokyo, Japan	Health care,Blood management,Syringe, ...[+2]	Avg patent value: 0
82	The Yokohama Rubber Co., Ltd.	Chiba, Japan	Automotive engineering,Radial tire,Tire manufacturing, ...[+2]	Avg patent value: 0
83	DIC Corp.	Tokyo, Japan	Pigment,Chemical engineering,Synthetic resin, ...[+2]	Avg patent value: 0
84	Yakult Honsha Co., Ltd.	Tokyo, Japan	Probiotic,Food industry,Health care, ...[+2]	Avg patent value: 0
85	Nikon Corp.	Tokyo, Japan	Microscope,Photography,Motion capture, ...[+2]	Avg patent value: 0
86	Tosoh Corp.	Tokyo, Japan	Petrochemical,Chemical engineering,Immunoprotein, ...[+2]	Avg patent value: 0
87	Fujikura Ltd.	Tokyo, Japan	Mobile device,Optoelectronics,Optical fiber, ...[+2]	Avg patent value: 0
88	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	Avg patent value: 0
89	Sumitomo Forestry Co., Ltd.	Tokyo, Japan	Forestry,Forest product,Reforestation, ...[+2]	Avg patent value: 0
90	Idemitsu Kosan Co., Ltd.	Tokyo, Japan	Petrochemical,Lubricant,Petroleum, ...[+2]	Avg patent value: 0
91	Kansai Paint Co., Ltd.	Osaka, Japan	Coating,Chemical engineering,Color scheme, ...[+2]	Avg patent value: 0
92	Toyoda Gosei Co., Ltd.	Aichi, Japan	Optoelectronics,Airbag,Synthetic rubber, ...[+2]	Avg patent value: 0
93	Sumitomo Riko Co., Ltd.	Aichi, Japan	Electronics,Plastics engineering,Belting, ...[+2]	Avg patent value: 0
94	NGK Insulators, Ltd.	Aichi, Japan	Beryllium copper,Industrial engineering,Pottery, ...[+2]	Avg patent value: 0
95	NOK Corp.	Tokyo, Japan	Lubricant,Printed electronics,Industrial engineering, ...[+2]	Avg patent value: 0
96	SCREEN Holdings Co., Ltd.	Kyoto, Japan	Semiconductor,Wafer fabrication,Flat panel display, ...[+2]	Avg patent value: 0
97	Central Glass Co., Ltd.	Tokyo, Japan	Glazing,Fine chemical,Chemical engineering, ...[+2]	Avg patent value: 0
98	Sumitomo Bakelite Co., Ltd.	Tokyo, Japan	Semiconductor,Materials science,Bakelite, ...[+2]	Avg patent value: 0
99	Taiyo Yuden Co., Ltd.	Tokyo, Japan	Semiconductor,Electronics,Electronic component, ...[+2]	Avg patent value: 0
100	Tokuyama Corp.	Tokyo, Japan	Cement,Chemical engineering,Fumed silica, ...[+2]	Avg patent value: 0