Top 100 Key Players companies in Carbon fibers by Most Patent Citation in the Japan in 2020 – Discovery

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The Carbon fibers top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Citation Carbon fibers Key Players in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2020, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.

Carbon fibers or carbon fibres (alternatively CF, graphite fiber or graphite fibre) are fibers about 5–10 micrometres in diameter and composed mostly of carbon atoms. Carbon fibers have several advantages including high stiffness, high tensile strength, low weight, high chemical resistance, high temperature tolerance and low thermal expansion. These properties have made carbon fiber very popular in aerospace, civil engineering, military, and motorsports, along with other competition sports. However, they are relatively expensive when compared with similar fibers, such as glass fibers or plastic fibers.

1	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	patent citation: 15,237
2	Toho Rayon Co. Ltd.	Japan		patent citation: 4,388
3	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	patent citation: 3,773
4	Teijin Ltd.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polycarbonate, ...[+2]	patent citation: 3,509
5	Osaka Gas Co., Ltd.	Osaka, Japan	Natural gas,Activated carbon,Petroleum industry, ...[+2]	patent citation: 1,966
6	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	patent citation: 1,863
7	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	patent citation: 1,668
8	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	patent citation: 1,668
9	Toyobo Co., Ltd.	Osaka, Japan	Chemical engineering,Synthetic rubber,Membrane, ...[+2]	patent citation: 1,490
10	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	patent citation: 1,456
11	Nikkiso Co., Ltd.	Tokyo, Japan	Hemodialysis,Medical equipment,Aerospace, ...[+2]	patent citation: 1,447
12	Kureha Corp.	Hokkaido, Japan	Chemical engineering,Polyvinylidene fluoride,Wallpaper, ...[+2]	patent citation: 1,384
13	Honda Motor Co., Ltd.	Tokyo, Japan	Automotive engineering,Manufacturing engineering,Sport utility vehicle, ...[+2]	patent citation: 1,347
14	NIPPON STEEL Stainless Steel Corp.	Tokyo, Japan	Mill,Metal,Mining engineering, ...[+1]	patent citation: 1,204
15	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	patent citation: 1,169
16	Mitsubishi Kogyo KK	Japan		patent citation: 1,113
17	Tonen General Sekiyu KK	Chiba, Japan	Petroleum product,Petrochemical,Liquefied natural gas, ...[+2]	patent citation: 1,101
18	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	patent citation: 947
19	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	patent citation: 947
20	Bridgestone Corp.	Tokyo, Japan	Automotive engineering,sports equipment,Natural rubber, ...[+2]	patent citation: 920
21	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	patent citation: 856
22	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	patent citation: 843
23	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	patent citation: 811
24	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	patent citation: 804
25	Sumitomo Chemical Co., Ltd.	Tokyo, Japan	Petrochemical,Agriculture,Pesticide, ...[+2]	patent citation: 797
26	DIC Corp.	Tokyo, Japan	Pigment,Chemical engineering,Synthetic resin, ...[+2]	patent citation: 718
27	DIC Corporation		Pigment,Polymer,Epoxy, ...[+2]	patent citation: 718
28	Nippon Micrometal Corp.	Saitama, Japan	Solder ball,Printed electronics,Metal	patent citation: 713
29	Toyo Tanso Co., Ltd.	Osaka, Japan	Graphite,Industrial engineering,Carbon, ...[+2]	patent citation: 711
30	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		patent citation: 709
31	Nissan Motor Co., Ltd.	Kanagawa, Japan	Truck,Public transport,Automotive engineering, ...[+2]	patent citation: 690
32	NTN Toyo Bearing Co., Ltd.	Japan	Ball bearing	patent citation: 663
33	Showa Denko Materials Co., Ltd.	Tokyo, Japan	Semiconductor,Carbon product,Efficient energy use, ...[+2]	patent citation: 661
34	UBE Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Coal mining, ...[+2]	patent citation: 654
35	Sekisui Polymatech Co., Ltd.	Saitama, Japan	Grease,Printed electronics,Chemical engineering, ...[+2]	patent citation: 631
36	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	patent citation: 610
37	Fujitsu Ltd.	Tokyo, Japan	Cloud computing,Enterprise software,Information technology management, ...[+2]	patent citation: 594
38	Mitsubishi Materials Corp.	Tokyo, Japan	Cement,Alloy,Polycrystalline silicon, ...[+2]	patent citation: 594
39	Hodogaya Chemical Co., Ltd.	Tokyo, Japan	Pigment,Chemical engineering,Functional polymers, ...[+2]	patent citation: 594
40	Mitsubishi Materials Techno Corp.	Japan		patent citation: 594
41	The Yokohama Rubber Co., Ltd.	Chiba, Japan	Automotive engineering,Radial tire,Tire manufacturing, ...[+2]	patent citation: 584
42	Kawasaki Steel Corp.	Japan		patent citation: 578
43	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	patent citation: 567
44	Takemoto Oil & Fat Co., Ltd.	Aichi, Japan	Food industry,Snack foods,Starch	patent citation: 539
45	Mitsui & Co., Ltd.	Tokyo, Japan	Metal,Enterprise software,Methanol, ...[+2]	patent citation: 528
46	Unitika Ltd.	Osaka, Japan	Fiber,Textile (markup language),Polymer, ...[+2]	patent citation: 519
47	Asahi Chemical Industry Co., Ltd.	Japan	Chemical industry,Chemical engineering	patent citation: 496
48	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	patent citation: 493
49	Yazaki Corp.	Tokyo, Japan	Electronic component,Automotive engineering,Cable harness, ...[+2]	patent citation: 490
50	Nisshin Kogyo KK	Tokyo, Japan	Construction engineering	patent citation: 475
51	Nippon Zeon Co., Ltd.	Tokyo, Japan	Chemical engineering,Solid-state battery,Supercapacitor, ...[+1]	patent citation: 463
52	Yonex Co., Ltd.	Tokyo, Japan	sports equipment,Racket,Basketball, ...[+2]	patent citation: 448
53	Nippon Carbon Co., Ltd.	Tokyo, Japan	Graphite,Industrial engineering,3D printing, ...[+2]	patent citation: 440
54	Mizuno Corp.	Osaka, Japan	sports equipment,Football,Golf Ball, ...[+2]	patent citation: 439
55	NOK Corp.	Tokyo, Japan	Lubricant,Printed electronics,Industrial engineering, ...[+2]	patent citation: 437
56	Osaka Prefecture Veterinary Medical Association	Osaka, Japan		patent citation: 427
57	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	patent citation: 425
58	Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Silicone,Semiconductor,Chemical engineering, ...[+2]	patent citation: 411
59	Sekisui Chemical Co., Ltd.	Osaka, Japan	Synthetic rubber,Industrial engineering,Polyvinyl chloride, ...[+2]	patent citation: 395
60	Daido Metal Co., Ltd.	Aichi, Japan	Automotive engine,Automotive engineering,Metal, ...[+2]	patent citation: 391
61	Teijin Techno Products Ltd.	Osaka, Japan		patent citation: 389
62	Mitsubishi Plastics, Inc.	Tokyo, Japan	Bottle,Chemical engineering,Plastic film, ...[+2]	patent citation: 382
63	Tokai Carbon Co., Ltd.	Tokyo, Japan	Carbon black,Graphite,Carbon, ...[+2]	patent citation: 355
64	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	patent citation: 355
65	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	patent citation: 355
66	DENSO Corp.	Aichi, Japan	Automotive engineering,Industrial robot,Programmable logic controller, ...[+2]	patent citation: 344
67	JSR Corp.	Tokyo, Japan	Synthetic rubber,Natural rubber,Elastomer, ...[+2]	patent citation: 336
68	Nitto Boseki Co., Ltd.	Tokyo, Japan	Glass fiber,Textile,Composite material, ...[+2]	patent citation: 328
69	NGK Insulators, Ltd.	Aichi, Japan	Beryllium copper,Industrial engineering,Pottery, ...[+2]	patent citation: 317
70	Kawasaki Heavy Industries Ltd.	Kyoto, Japan	Turbine,Mechanical engineering,Manufacturing engineering, ...[+2]	patent citation: 314
71	Oji Holdings Corp.	Tokyo, Japan	Containerboard,Paperboard,Thermal paper, ...[+2]	patent citation: 308
72	Furukawa Electric Co., Ltd.	Tokyo, Japan	Optical fiber,Renewable energy,Optoelectronics, ...[+2]	patent citation: 303
73	Kyocera Corp.	Kyoto, Japan	Semiconductor,Electronics,Telecommunications, ...[+2]	patent citation: 302
74	JX Nippon Oil & Energy Marine Service Corp.	Japan	Lubricant,Grease,p-Xylene, ...[+2]	patent citation: 302
75	Mitsubishi Engineering-Plastics Corp.	Tokyo, Japan	Polycarbonate,Polybutylene terephthalate,Chemical engineering, ...[+2]	patent citation: 298
76	Idemitsu Kosan Co., Ltd.	Tokyo, Japan	Petrochemical,Lubricant,Petroleum, ...[+2]	patent citation: 294
77	Shimano, Inc.	Osaka, Japan	Fishing,sports equipment,Fast-moving consumer goods, ...[+2]	patent citation: 290
78	Harada Co., Ltd.	Nara, Japan	Unisex	patent citation: 280
79	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	patent citation: 277
80	Advanced Industrial Science & Technology	Tokyo, Japan	Graphene,Association (object-oriented programming)	patent citation: 274
81	Nikon Corp.	Tokyo, Japan	Microscope,Photography,Motion capture, ...[+2]	patent citation: 268
82	Kashima Oil Co., Ltd.	Tokyo, Japan	Naphtha,Petroleum,Ethylene, ...[+2]	patent citation: 267
83	Shin-Etsu Polymer Co., Ltd.	Tokyo, Japan	Semiconductor,Chemical engineering,Ductile iron pipe, ...[+2]	patent citation: 261
84	NSK Ltd.	Tokyo, Japan	Ball bearing,Automatic transmission,Bearing (navigation), ...[+2]	patent citation: 257
85	GSI Creos Corp.	Tokyo, Japan	Textile,Textile (markup language),Yarn, ...[+2]	patent citation: 252
86	Matsumoto Yushi-Seiyaku Co., Ltd.	Osaka, Japan	Surface-active agents,Microsphere,Chemical engineering, ...[+2]	patent citation: 250
87	Gun Ei Chemical Industry Co., Ltd.	Japan	Textile,Industrial engineering,Synthetic rubber, ...[+2]	patent citation: 246
88	Yamaha Corp.	Shizuoka, Japan	Audio equipment,Gasoline,Loudspeaker, ...[+2]	patent citation: 244
89	Japan Exlan Co., Ltd.	Japan		patent citation: 244
90	Noritake Co., Ltd.	Aichi, Japan	Abrasive,Diamond,Manufacturing engineering, ...[+2]	patent citation: 242
91	DAIKIN INDUSTRIES Ltd.	Osaka, Japan	Air conditioning,Refrigeration,Mechanical engineering, ...[+2]	patent citation: 235
92	Daikin Airconditioning France SAS	Osaka, Japan	Industrial engineering,Fluorochemical industry,Air conditioning, ...[+1]	patent citation: 235
93	Across Co., Ltd.	Tokyo, Japan	Real estate development	patent citation: 233
94	Sumitomo Metal Industries Ltd.	Osaka, Japan	Metal,Semiconductor,Casting, ...[+2]	patent citation: 231
95	Prime Polymer Co., Ltd.	Tokyo, Japan	Polypropylene,Polyethylene,Polymer, ...[+2]	patent citation: 230
96	Calp Corp.	Japan		patent citation: 225
97	Seibu Giken Co., Ltd.	Fukuoka, Japan	Heat pump,Automation,Manufacturing engineering, ...[+2]	patent citation: 222
98	Aisin Chemical Co., Ltd.	Aichi, Japan	Chemical engineering	patent citation: 222
99	Toshiba Ceramics Co. Ltd.	Japan		patent citation: 222
100	Yuasa Co., Ltd.	Hokkaido, Japan	Software development,Software,Accounting	patent citation: 221