Top 100 Key Players companies in Polarizer by Most Patent Filings in the Japan in 2019 – Discovery

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The Polarizer top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Filings Polarizer Key Players in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2019, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.

A polarizer or polariser is an optical filter that lets light waves of a specific polarization pass through while blocking light waves of other polarizations. It can filter a beam of light of undefined or mixed polarization into a beam of well-defined polarization, that is polarized light. The common types of polarizers are linear polarizers and circular polarizers. Polarizers are used in many optical techniques and instruments, and polarizing filters find applications in photography and LCD technology. Polarizers can also be made for other types of electromagnetic waves besides light, such as radio waves, microwaves, and X-rays.

1	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	Patent: 5,588
2	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	Patent: 3,635
3	Sumitomo Chemical Co., Ltd.	Tokyo, Japan	Petrochemical,Agriculture,Pesticide, ...[+2]	Patent: 3,154
4	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	Patent: 1,272
5	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	Patent: 1,063
6	Konica Minolta Advanced Layers, Inc.	Japan		Patent: 820
7	Dai Nippon Printing Co., Ltd.	Tokyo, Japan	Electronics,Publishing,Publication, ...[+2]	Patent: 794
8	Dainippon Printing Co. Ltd.	Japan		Patent: 794
9	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	Patent: 702
10	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	Patent: 702
11	Nippon Zeon Co., Ltd.	Tokyo, Japan	Chemical engineering,Solid-state battery,Supercapacitor, ...[+1]	Patent: 621
12	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	Patent: 598
13	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	Patent: 516
14	Toyobo Co., Ltd.	Osaka, Japan	Chemical engineering,Synthetic rubber,Membrane, ...[+2]	Patent: 502
15	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	Patent: 421
16	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	Patent: 419
17	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		Patent: 404
18	Nippon Kayaku Co., Ltd.	Tokyo, Japan	Biosimilar,Chemical engineering,Industrial engineering, ...[+2]	Patent: 376
19	Fujitsu Ltd.	Tokyo, Japan	Cloud computing,Enterprise software,Information technology management, ...[+2]	Patent: 365
20	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	Patent: 357
21	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	Patent: 334
22	Japan Display, Inc.	Tokyo, Japan	Semiconductor,Electronic visual display,Navigation system, ...[+2]	Patent: 329
23	Casio Computer Co., Ltd.	Tokyo, Japan	Projector,Electronics,Digital camera, ...[+2]	Patent: 298
24	Casio Electronics Manufacturing Co., Ltd.	Saitama, Japan		Patent: 298
25	Nippon Telegraph & Telephone Corp.	Tokyo, Japan	Telecommunications,Cloud database,Data center, ...[+2]	Patent: 287
26	Citizen Watch Co., Ltd.	Tokyo, Japan	Quartz,Semiconductor,Electronics, ...[+2]	Patent: 270
27	Kyocera Corp.	Kyoto, Japan	Semiconductor,Electronics,Telecommunications, ...[+2]	Patent: 268
28	Stanley Electric Co., Ltd.	Tokyo, Japan	Headlamp,Automotive engineering,Backlight, ...[+2]	Patent: 242
29	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	Patent: 223
30	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	Patent: 223
31	Panasonic Liquid Crystal Display Co., Ltd.	Hyogo, Japan	Liquid-crystal display,Electronics	Patent: 211
32	Sekisui Chemical Co., Ltd.	Osaka, Japan	Synthetic rubber,Industrial engineering,Polyvinyl chloride, ...[+2]	Patent: 188
33	Nikon Corp.	Tokyo, Japan	Microscope,Photography,Motion capture, ...[+2]	Patent: 186
34	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	Patent: 184
35	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	Patent: 169
36	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	Patent: 169
37	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	Patent: 156
38	Semiconductor Energy Laboratory Co., Ltd.	Kanagawa, Japan	Semiconductor,Transistor,Semiconductor device, ...[+2]	Patent: 147
39	Soken Chemical & Engineering Co., Ltd.	Tokyo, Japan	Adhesive,Chemical engineering,Adhesion, ...[+2]	Patent: 145
40	DIC Corp.	Tokyo, Japan	Pigment,Chemical engineering,Synthetic resin, ...[+2]	Patent: 143
41	DIC Corporation		Pigment,Polymer,Epoxy, ...[+2]	Patent: 143
42	JSR Corp.	Tokyo, Japan	Synthetic rubber,Natural rubber,Elastomer, ...[+2]	Patent: 141
43	TOKIN Corp	Miyagi, Japan	Capacitor,Electronic component,Electromagnetic compatibility, ...[+2]	Patent: 139
44	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	Patent: 138
45	The Nippon Synthetic Chemical Industry Co., Ltd.	Osaka, Japan	Chemical engineering,Adhesive,Acetic acid, ...[+2]	Patent: 135
46	Nippon Shokubai Co., Ltd.	Tokyo, Japan	Polymer,Acrylic acid,Chemical engineering, ...[+2]	Patent: 132
47	Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Silicone,Semiconductor,Chemical engineering, ...[+2]	Patent: 128
48	Konica Minolta, Inc.	Tokyo, Japan	Medical imaging,Attractiveness,Product group, ...[+2]	Patent: 124
49	LINTEC Corp.	Tokyo, Japan	Adhesive materials,Industrial engineering,Pressure sensitive, ...[+2]	Patent: 123
50	Dexerials Corp.	Tokyo, Japan	Electronic component,Polarizer,Electronics, ...[+2]	Patent: 119
51	Teijin Ltd.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polycarbonate, ...[+2]	Patent: 110
52	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	Patent: 106
53	Kuraray Co., Ltd.	Tokyo, Japan	Synthetic rubber,Isoprene,Vinyl acetate, ...[+2]	Patent: 105
54	Olympus Corp.	Tokyo, Japan	Microscope,Endoscopy,Software, ...[+2]	Patent: 101
55	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	Patent: 98
56	Kaneka Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polyvinyl chloride, ...[+2]	Patent: 97
57	NEC LCD Technologies Ltd.	Kanagawa, Japan	Liquid-crystal display,Computer hardware,Electronics	Patent: 95
58	Fuji Electronics Co., Ltd.	Tokyo, Japan	Semiconductor,Microcomputer,Electronic component, ...[+2]	Patent: 94
59	Seiko Instruments, Inc.	Chiba, Japan	Semiconductor,Electronic component,Optical fiber connector, ...[+2]	Patent: 94
60	Fuji Electric FA Components & SYstems Co., Ltd.	Tokyo, Japan	Semiconductor,Industrial engineering,Smart grid, ...[+2]	Patent: 94
61	Toshiba Mobile Display Technology Co., Ltd	Tokyo, Japan	Liquid-crystal display,Computer hardware,Electronics, ...[+2]	Patent: 88
62	Hamamatsu Photonics KK	Shizuoka, Japan	Semiconductor,Photonics,Laser, ...[+2]	Patent: 86
63	Shimadzu Corp.	Kyoto, Japan	Molecular diagnostics,Microbiology Test,Cockpit display system, ...[+2]	Patent: 85
64	Hitachi Cable Ltd.	Tokyo, Japan	Electronics,Metal,Optical fiber, ...[+2]	Patent: 83
65	JX Nippon Oil & Energy Marine Service Corp.	Japan	Lubricant,Grease,p-Xylene, ...[+2]	Patent: 82
66	NGK Insulators, Ltd.	Aichi, Japan	Beryllium copper,Industrial engineering,Pottery, ...[+2]	Patent: 80
67	Mitsubishi Plastics, Inc.	Tokyo, Japan	Bottle,Chemical engineering,Plastic film, ...[+2]	Patent: 76
68	Yokogawa Electric Corp.	Tokyo, Japan	Automation,Systems design,Programmable logic controller, ...[+2]	Patent: 72
69	Sumitomo Metal Mining Co., Ltd.	Tokyo, Japan	Nickel,Mining engineering,Natural resource management, ...[+2]	Patent: 72
70	Victor Company of Japan Ltd.	Kanagawa, Japan	Electronics,Software,High-definition television, ...[+2]	Patent: 72
71	OMRON Corp.	Kyoto, Japan	Automation,Electronics,Health care, ...[+2]	Patent: 65
72	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	Patent: 64
73	TDK Corp.	Tokyo, Japan	Electronic component,Ceramic capacitor,Electronics, ...[+2]	Patent: 63
74	Sony Semiconductor Solutions Corp.	Kanagawa, Japan	Semiconductor,Image sensor,CMOS sensor, ...[+2]	Patent: 63
75	Oji Holdings Corp.	Tokyo, Japan	Containerboard,Paperboard,Thermal paper, ...[+2]	Patent: 60
76	Fujikura Ltd.	Tokyo, Japan	Mobile device,Optoelectronics,Optical fiber, ...[+2]	Patent: 60
77	Japan Display Central, Inc.	Japan		Patent: 58
78	Furukawa Electric Co., Ltd.	Tokyo, Japan	Optical fiber,Renewable energy,Optoelectronics, ...[+2]	Patent: 57
79	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	Patent: 57
80	Alps Alpine Co., Ltd.	Tokyo, Japan	Electronic component,Electronics,Power transmission, ...[+2]	Patent: 52
81	Toagosei Co., Ltd.	Tokyo, Japan	Adhesive,Chemical engineering,Polymer, ...[+2]	Patent: 49
82	HOYA Corp.	Tokyo, Japan	Computer hardware,Software,Intraocular lens, ...[+2]	Patent: 48
83	Fujimori Kogyo Co., Ltd.	Tokyo, Japan	Food packaging,Industrial engineering,Bag-in-box, ...[+2]	Patent: 48
84	Panasonic Intellectual Property Management Co. Ltd.	Osaka, Japan		Patent: 48
85	Fujitsu General Ltd.	Kanagawa, Japan	Air conditioning,Automation,Mechanical engineering, ...[+2]	Patent: 47
86	Tomoegawa Co., Ltd.	Tokyo, Japan	Materials processing,Industrial engineering,Nonwoven fabric, ...[+2]	Patent: 47
87	MGC Filsheet Co., Ltd.	Japan		Patent: 47
88	Adamant Namiki Precision Jewel	Tokyo, Japan	Glazing,Optical communication,Industrial engineering, ...[+1]	Patent: 46
89	Namiki Precision Jewel Co. Ltd.	Japan	Stepper motor,Rotor (electric),AC motor, ...[+2]	Patent: 46
90	Japan Aviation Electronics Industry Ltd.	Tokyo, Japan	Aerospace,National security,Electronics, ...[+2]	Patent: 45
91	JVCKenwood Corp.	Kanagawa, Japan	Headphones,Professional mobile radio,Professional video camera, ...[+2]	Patent: 44
92	Olympus Medical Systems Corp.	Tokyo, Japan	Endoscope,Medical equipment,Medicine, ...[+2]	Patent: 44
93	Toyo Ink SC Holdings Co., Ltd.	Hokkaido, Japan	Pigment,Manufacturing engineering,Coating, ...[+2]	Patent: 42
94	Nippon Seiki Co., Ltd.	Niigata, Japan	Vehicle inspection,Automotive engineering,Sales management, ...[+2]	Patent: 42
95	Nihon Seiki Co., Ltd.	Osaka, Japan	Compressed air,Automation,Manufacturing engineering, ...[+2]	Patent: 42
96	Jasco Corp.	Japan		Patent: 42
97	Toyo Kohan Co., Ltd.	Tokyo, Japan	Aluminum substrate,Ferroalloy,Mining engineering, ...[+1]	Patent: 41
98	Epson Imaging Devices Corp.	Nagano, Japan	Projector,Semiconductor	Patent: 41
99	Photonic Lattice, Inc.	Miyagi, Japan	Photonic crystal,Semiconductor,Metamaterial, ...[+2]	Patent: 41
100	Nippon Carbide Industries Co., Inc.	Kyoto, Japan	Ceramic substrate,Synthetic rubber,Melamine resin, ...[+2]	Patent: 39