Top 100 Key Players companies in Ductility by Most Patent Filings in the Japan in 2022 – Discovery

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The Ductility top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Filings Ductility Key Players in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2022, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.

Ductility is a measure of a material's ability to undergo significant plastic deformation before rupture, which may be expressed as percent elongation or percent area reduction from a tensile test. According to Shigley's Mechanical Engineering Design (10th Ed.) significant denotes about 5.0 percent elongation (Section 5.3, p. 233). See also Eq. 2–12, p. 50 for definitions of percent elongation and percent area reduction. Ductility is often characterized by a material's ability to be stretched into a wire.

1	NIPPON STEEL Stainless Steel Corp.	Tokyo, Japan	Mill,Metal,Mining engineering, ...[+1]	Patent: 1,490
2	JFE Holdings, Inc.	Tokyo, Japan	Materials science,Product design,Carbon steel, ...[+2]	Patent: 925
3	JFE Steel Corp.	Tokyo, Japan	Irone,Mining engineering,Natural resource management, ...[+2]	Patent: 925
4	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	Patent: 664
5	Sumitomo Metal Industries Ltd.	Osaka, Japan	Metal,Semiconductor,Casting, ...[+2]	Patent: 360
6	Nihon Koshuha Co. Ltd.	Japan		Patent: 320
7	Kawasaki Steel Corp.	Japan		Patent: 227
8	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	Patent: 165
9	Mitsubishi Kogyo KK	Japan		Patent: 154
10	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	Patent: 151
11	NKK Corp.	Tokyo, Japan	Natural resource management,Mining engineering	Patent: 145
12	Hitachi Metals, Ltd.	Chiba, Japan	Metal,Magnet,Telecommunications, ...[+2]	Patent: 144
13	Honda Motor Co., Ltd.	Tokyo, Japan	Automotive engineering,Manufacturing engineering,Sport utility vehicle, ...[+2]	Patent: 143
14	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	Patent: 131
15	Nippon Steel Nisshin Co., Ltd.	Tokyo, Japan	Construction engineering	Patent: 130
16	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	Patent: 102
17	Bridgestone Corp.	Tokyo, Japan	Automotive engineering,sports equipment,Natural rubber, ...[+2]	Patent: 97
18	Kubota Corp.	Osaka, Japan	Tractor,Manufacturing engineering,Combine harvester, ...[+2]	Patent: 96
19	Daido Steel Co., Ltd.	Aichi, Japan	Magnet,Power transmission,Ferroalloy, ...[+2]	Patent: 85
20	YKK Corp.	Tokyo, Japan	Fastener,Metal,Chaff, ...[+2]	Patent: 80
21	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	Patent: 78
22	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	Patent: 78
23	Mitsubishi Materials Corp.	Tokyo, Japan	Cement,Alloy,Polycrystalline silicon, ...[+2]	Patent: 74
24	Mitsubishi Materials Techno Corp.	Japan		Patent: 74
25	Furukawa Electric Co., Ltd.	Tokyo, Japan	Optical fiber,Renewable energy,Optoelectronics, ...[+2]	Patent: 69
26	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	Patent: 66
27	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	Patent: 66
28	JX Nippon Mining & Metals Corp.	Tokyo, Japan	Non-ferrous metal,Cathode material,Mining engineering, ...[+2]	Patent: 58
29	Senju Metal Industry Co., Ltd.	Tokyo, Japan	Solder ball,Mining engineering,Natural resource management, ...[+2]	Patent: 47
30	Kao Corp.	Tokyo, Japan	Cosmetics,Health care,Hair conditioner, ...[+2]	Patent: 46
31	Nissan Motor Co., Ltd.	Kanagawa, Japan	Truck,Public transport,Automotive engineering, ...[+2]	Patent: 43
32	The Japan Steel Works Ltd.	Tokyo, Japan	Wind power,Ferroalloy,Energy products, ...[+2]	Patent: 42
33	JSW	Tokyo, Japan	Energy products,Petroleum industry,Precious metal, ...[+2]	Patent: 42
34	Toyota Central R&D Labs, Inc.	Aichi, Japan	Semiconductor,Power semiconductor device,System on a chip, ...[+2]	Patent: 42
35	Sekisui Chemical Co., Ltd.	Osaka, Japan	Synthetic rubber,Industrial engineering,Polyvinyl chloride, ...[+2]	Patent: 39
36	TOTO Ltd.	Fukuoka, Japan	Bathtub,Cistern,Sink (computing), ...[+2]	Patent: 38
37	Mitsubishi Power Ltd.	Kanagawa, Japan	Turbine,Control system,Renewable energy, ...[+2]	Patent: 38
38	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	Patent: 35
39	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		Patent: 35
40	Kuraray Co., Ltd.	Tokyo, Japan	Synthetic rubber,Isoprene,Vinyl acetate, ...[+2]	Patent: 34
41	Saint-Gobain TM KK	Tokyo, Japan	Ceramic materials,Construction engineering,Materials science, ...[+2]	Patent: 33
42	IHI Power Systems Co., Ltd.	Tokyo, Japan	Turbine,Gas engine,Manufacturing engineering, ...[+2]	Patent: 31
43	Mazda Motor Corp.	Kanagawa, Japan	Automotive engineering,Reciprocating engine,Manual transmission, ...[+2]	Patent: 29
44	Unitika Ltd.	Osaka, Japan	Fiber,Textile (markup language),Polymer, ...[+2]	Patent: 29
45	National Institute for Materials Science IAI	Ibaraki, Japan	Metal	Patent: 29
46	Tosoh Corp.	Tokyo, Japan	Petrochemical,Chemical engineering,Immunoprotein, ...[+2]	Patent: 28
47	UACJ Corp.	Tokyo, Japan	Metal,Aluminium alloy,Alloy, ...[+2]	Patent: 27
48	Sanyo Special Steel Co., Ltd.	Hyogo, Japan	Forging,Mining engineering,Natural resource management, ...[+2]	Patent: 25
49	Yazaki Corp.	Tokyo, Japan	Electronic component,Automotive engineering,Cable harness, ...[+2]	Patent: 25
50	NHK Spring Co., Ltd.	Kanagawa, Japan	Leaf spring,Coil spring,Head restraint, ...[+2]	Patent: 24
51	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	Patent: 23
52	Dai Nippon Printing Co., Ltd.	Tokyo, Japan	Electronics,Publishing,Publication, ...[+2]	Patent: 23
53	Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Silicone,Semiconductor,Chemical engineering, ...[+2]	Patent: 23
54	Toyobo Co., Ltd.	Osaka, Japan	Chemical engineering,Synthetic rubber,Membrane, ...[+2]	Patent: 23
55	Dainippon Printing Co. Ltd.	Japan		Patent: 23
56	Fujitsu Ltd.	Tokyo, Japan	Cloud computing,Enterprise software,Information technology management, ...[+2]	Patent: 22
57	Showa Denko Materials Co., Ltd.	Tokyo, Japan	Semiconductor,Carbon product,Efficient energy use, ...[+2]	Patent: 22
58	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	Patent: 21
59	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	Patent: 21
60	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	Patent: 21
61	Kaneka Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polyvinyl chloride, ...[+2]	Patent: 21
62	Mitsubishi Hitachi Power Systems	Kanagawa, Japan	Control system	Patent: 21
63	Murata Manufacturing Co. Ltd.	Kyoto, Japan	Semiconductor,Electronics,Electronic component, ...[+2]	Patent: 20
64	Teijin Ltd.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polycarbonate, ...[+2]	Patent: 19
65	MA Aluminum Corp.	Tokyo, Japan	Mill,Metal,Precious metal, ...[+2]	Patent: 19
66	UBE Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Coal mining, ...[+2]	Patent: 18
67	DIC Corp.	Tokyo, Japan	Pigment,Chemical engineering,Synthetic resin, ...[+2]	Patent: 17
68	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	Patent: 17
69	Sumitomo Metal Mining Co., Ltd.	Tokyo, Japan	Nickel,Mining engineering,Natural resource management, ...[+2]	Patent: 17
70	DISCO Corp.	Tokyo, Japan	Semiconductor,Manufacturing engineering,Industrial engineering, ...[+2]	Patent: 17
71	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	Patent: 17
72	DIC Corporation		Pigment,Polymer,Epoxy, ...[+2]	Patent: 17
73	Isuzu Motors Ltd.	Tokyo, Japan	Truck,Public transport,Diesel engine, ...[+2]	Patent: 16
74	Topy Industries, Ltd.	Tokyo, Japan	Alloy wheel,Robot,Automotive engineering, ...[+2]	Patent: 16
75	Mitsuboshi Belting Ltd.	Tokyo, Japan	Belting,Automotive engineering,Conveyor belt, ...[+2]	Patent: 16
76	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	Patent: 16
77	Nippon Light Metal Co., Ltd.	Tokyo, Japan	Metal,Precious metal,Mining engineering, ...[+2]	Patent: 16
78	Showa Aluminum Corp.	Tokyo, Japan	Mining engineering,Precious metal,Dross, ...[+2]	Patent: 16
79	The Chugoku Electric Power Co., Inc.	Hiroshima, Japan	Renewable energy,Petroleum industry,Electric power transmission, ...[+2]	Patent: 15
80	Kyocera Corp.	Kyoto, Japan	Semiconductor,Electronics,Telecommunications, ...[+2]	Patent: 14
81	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	Patent: 14
82	Nakayama Steel Works, Ltd.	Osaka, Japan	Reef,Industrial engineering,Ferroalloy	Patent: 14
83	Sumitomo Chemical Co., Ltd.	Tokyo, Japan	Petrochemical,Agriculture,Pesticide, ...[+2]	Patent: 13
84	The Yokohama Rubber Co., Ltd.	Chiba, Japan	Automotive engineering,Radial tire,Tire manufacturing, ...[+2]	Patent: 13
85	NGK Insulators, Ltd.	Aichi, Japan	Beryllium copper,Industrial engineering,Pottery, ...[+2]	Patent: 13
86	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	Patent: 13
87	Polyplastics Co., Ltd.	Tokyo, Japan	Engineering plastic,Plastics engineering,Polymer, ...[+2]	Patent: 13
88	NTN Toyo Bearing Co., Ltd.	Japan	Ball bearing	Patent: 13
89	Neturen Takuto Co., Ltd.	Shizuoka, Japan		Patent: 13
90	IHI Corp.	Tokyo, Japan	Turbocharger,Manufacturing engineering,Turbine, ...[+2]	Patent: 12
91	TYK Corp.	Gifu, Japan	Refractory,Building material,Home automation, ...[+2]	Patent: 12
92	Toyo Kohan Co., Ltd.	Tokyo, Japan	Aluminum substrate,Ferroalloy,Mining engineering, ...[+1]	Patent: 12
93	Komatsu Ltd.	Tokyo, Japan	Environmental engineering,Construction engineering,Heavy equipment, ...[+2]	Patent: 11
94	Toyo Ink SC Holdings Co., Ltd.	Hokkaido, Japan	Pigment,Manufacturing engineering,Coating, ...[+2]	Patent: 11
95	Nippon Yakin Kogyo Co., Ltd.	Tokyo, Japan	Industrial engineering,Steel company,Rebar, ...[+2]	Patent: 11
96	Suzuki Co., Ltd.	Nagano, Japan	Semiconductor,Electronics,Electronic component, ...[+2]	Patent: 11
97	Hitachi Cable Ltd.	Tokyo, Japan	Electronics,Metal,Optical fiber, ...[+2]	Patent: 11
98	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	Patent: 11
99	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	Patent: 11
100	Toa Steel Co. Ltd.	Tokyo, Japan	Natural resource management,Mining engineering	Patent: 11