Top 50 Key Players companies in Lithium-ion battery by Most Patent Filings in the Japan in 2021 – Discovery

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1	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	Patent: 2,671
2	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	Patent: 744
3	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	Patent: 715
4	Nissan Motor Co., Ltd.	Kanagawa, Japan	Truck,Public transport,Automotive engineering, ...[+2]	Patent: 548
5	Yuasa Co., Ltd.	Hokkaido, Japan	Software development,Software,Accounting	Patent: 504
6	Japan Storage Battery Co., Ltd.	Kyoto, Japan	Electronics	Patent: 504
7	Semiconductor Energy Laboratory Co., Ltd.	Kanagawa, Japan	Semiconductor,Transistor,Semiconductor device, ...[+2]	Patent: 486
8	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	Patent: 483
9	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	Patent: 454
10	Honda Motor Co., Ltd.	Tokyo, Japan	Automotive engineering,Manufacturing engineering,Sport utility vehicle, ...[+2]	Patent: 404
11	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	Patent: 336
12	UBE Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Coal mining, ...[+2]	Patent: 295
13	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	Patent: 286
14	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	Patent: 256
15	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	Patent: 237
16	Sanyo Chemical Industries, Ltd.	Kyoto, Japan	Chemical engineering,Polyurethane,Superabsorbent polymer, ...[+2]	Patent: 237
17	Mitsui Chemistry Joint-stock Co.	Japan		Patent: 234
18	Showa Denko Materials Co., Ltd.	Tokyo, Japan	Semiconductor,Carbon product,Efficient energy use, ...[+2]	Patent: 230
19	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	Patent: 222
20	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	Patent: 222
21	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	Patent: 212
22	Koki Holdings Co. Ltd.	Aichi, Japan	Power tool,Metalworking,Centrifuge, ...[+2]	Patent: 188
23	Makita Corp.	Aichi, Japan	Computer hardware,Information technology management,Metalworking, ...[+2]	Patent: 185
24	Makita	Fukuoka, Japan	Industrial engineering	Patent: 185
25	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	Patent: 179
26	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		Patent: 175
27	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	Patent: 168
28	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	Patent: 161
29	Subaru Corp.	Tokyo, Japan	Automotive engineering,Public transport,Aerospace, ...[+2]	Patent: 143
30	Toyota Central R&D Labs, Inc.	Aichi, Japan	Semiconductor,Power semiconductor device,System on a chip, ...[+2]	Patent: 141
31	Kyocera Corp.	Kyoto, Japan	Semiconductor,Electronics,Telecommunications, ...[+2]	Patent: 139
32	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	Patent: 130
33	Tanaka Chemical Corp.	Fukui, Japan	Cathode material,Inorganic Chemical,Chemical engineering, ...[+2]	Patent: 122
34	TDK Corp.	Tokyo, Japan	Electronic component,Ceramic capacitor,Electronics, ...[+2]	Patent: 119
35	Mitsubishi Paper Mills Ltd.	Tokyo, Japan	Paperboard,Thermal paper,3D printing, ...[+2]	Patent: 107
36	Fuji Electronics Co., Ltd.	Tokyo, Japan	Semiconductor,Microcomputer,Electronic component, ...[+2]	Patent: 107
37	Fuji Electric FA Components & SYstems Co., Ltd.	Tokyo, Japan	Semiconductor,Industrial engineering,Smart grid, ...[+2]	Patent: 107
38	Yazaki Corp.	Tokyo, Japan	Electronic component,Automotive engineering,Cable harness, ...[+2]	Patent: 106
39	Vehicle Energy Japan, Inc.	Osaka, Japan	Lithium-ion battery,Automotive engineering,Electric-vehicle battery, ...[+2]	Patent: 103
40	DKS Co., Ltd.	Kyoto, Japan	Chemical engineering,Coating,Industrial engineering, ...[+2]	Patent: 94
41	Mitsumi Electric Co., Ltd.	Osaka, Japan	Semiconductor,Metal,Electronic component, ...[+2]	Patent: 94
42	Casio Electronics Manufacturing Co., Ltd.	Saitama, Japan		Patent: 94
43	Suzuki Co., Ltd.	Nagano, Japan	Semiconductor,Electronics,Electronic component, ...[+2]	Patent: 87
44	Mazda Motor Corp.	Kanagawa, Japan	Automotive engineering,Reciprocating engine,Manual transmission, ...[+2]	Patent: 83
45	Nippon Zeon Co., Ltd.	Tokyo, Japan	Chemical engineering,Solid-state battery,Supercapacitor, ...[+1]	Patent: 80
46	DAIKIN INDUSTRIES Ltd.	Osaka, Japan	Air conditioning,Refrigeration,Mechanical engineering, ...[+2]	Patent: 78
47	Evonik Degussa Japan Co., Ltd.	Tokyo, Japan		Patent: 78
48	Fujitsu Ltd.	Tokyo, Japan	Cloud computing,Enterprise software,Information technology management, ...[+2]	Patent: 75
49	Dai Nippon Printing Co., Ltd.	Tokyo, Japan	Electronics,Publishing,Publication, ...[+2]	Patent: 74
50	Dainippon Printing Co. Ltd.	Japan		Patent: 74