Top 100 Key Players companies in Polarizer by Most Patent Citation in the Japan in 2021 – Discovery

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The Polarizer top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Citation Polarizer 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.

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 citation: 26,520
2	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	patent citation: 23,873
3	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	patent citation: 11,916
4	Sumitomo Chemical Co., Ltd.	Tokyo, Japan	Petrochemical,Agriculture,Pesticide, ...[+2]	patent citation: 11,151
5	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	patent citation: 7,567
6	Konica Minolta Advanced Layers, Inc.	Japan		patent citation: 5,990
7	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	patent citation: 4,109
8	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	patent citation: 4,109
9	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	patent citation: 3,781
10	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	patent citation: 3,458
11	Konica Minolta, Inc.	Tokyo, Japan	Medical imaging,Attractiveness,Product group, ...[+2]	patent citation: 3,293
12	Dai Nippon Printing Co., Ltd.	Tokyo, Japan	Electronics,Publishing,Publication, ...[+2]	patent citation: 3,250
13	Dainippon Printing Co. Ltd.	Japan		patent citation: 3,250
14	Kaneka Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polyvinyl chloride, ...[+2]	patent citation: 3,029
15	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	patent citation: 2,987
16	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	patent citation: 2,963
17	Panasonic Liquid Crystal Display Co., Ltd.	Hyogo, Japan	Liquid-crystal display,Electronics	patent citation: 2,452
18	Nippon Zeon Co., Ltd.	Tokyo, Japan	Chemical engineering,Solid-state battery,Supercapacitor, ...[+1]	patent citation: 2,363
19	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	patent citation: 2,310
20	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	patent citation: 2,278
21	Fujitsu Ltd.	Tokyo, Japan	Cloud computing,Enterprise software,Information technology management, ...[+2]	patent citation: 2,266
22	Nikon Corp.	Tokyo, Japan	Microscope,Photography,Motion capture, ...[+2]	patent citation: 2,092
23	Sekisui Chemical Co., Ltd.	Osaka, Japan	Synthetic rubber,Industrial engineering,Polyvinyl chloride, ...[+2]	patent citation: 2,038
24	Casio Computer Co., Ltd.	Tokyo, Japan	Projector,Electronics,Digital camera, ...[+2]	patent citation: 1,852
25	Casio Electronics Manufacturing Co., Ltd.	Saitama, Japan		patent citation: 1,852
26	Citizen Watch Co., Ltd.	Tokyo, Japan	Quartz,Semiconductor,Electronics, ...[+2]	patent citation: 1,740
27	Nippon Kayaku Co., Ltd.	Tokyo, Japan	Biosimilar,Chemical engineering,Industrial engineering, ...[+2]	patent citation: 1,728
28	Toyobo Co., Ltd.	Osaka, Japan	Chemical engineering,Synthetic rubber,Membrane, ...[+2]	patent citation: 1,699
29	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	patent citation: 1,687
30	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		patent citation: 1,513
31	The Nippon Synthetic Chemical Industry Co., Ltd.	Osaka, Japan	Chemical engineering,Adhesive,Acetic acid, ...[+2]	patent citation: 1,217
32	Teijin Ltd.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polycarbonate, ...[+2]	patent citation: 1,094
33	Victor Company of Japan Ltd.	Kanagawa, Japan	Electronics,Software,High-definition television, ...[+2]	patent citation: 1,076
34	JSR Corp.	Tokyo, Japan	Synthetic rubber,Natural rubber,Elastomer, ...[+2]	patent citation: 1,065
35	Kyocera Corp.	Kyoto, Japan	Semiconductor,Electronics,Telecommunications, ...[+2]	patent citation: 1,063
36	Stanley Electric Co., Ltd.	Tokyo, Japan	Headlamp,Automotive engineering,Backlight, ...[+2]	patent citation: 1,052
37	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	patent citation: 1,035
38	Nippon Telegraph & Telephone Corp.	Tokyo, Japan	Telecommunications,Cloud database,Data center, ...[+2]	patent citation: 934
39	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	patent citation: 913
40	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	patent citation: 913
41	Nippon Shokubai Co., Ltd.	Tokyo, Japan	Polymer,Acrylic acid,Chemical engineering, ...[+2]	patent citation: 799
42	Olympus Corp.	Tokyo, Japan	Microscope,Endoscopy,Software, ...[+2]	patent citation: 793
43	Japan Display, Inc.	Tokyo, Japan	Semiconductor,Electronic visual display,Navigation system, ...[+2]	patent citation: 770
44	LINTEC Corp.	Tokyo, Japan	Adhesive materials,Industrial engineering,Pressure sensitive, ...[+2]	patent citation: 753
45	NEC LCD Technologies Ltd.	Kanagawa, Japan	Liquid-crystal display,Computer hardware,Electronics	patent citation: 749
46	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	patent citation: 746
47	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	patent citation: 746
48	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	patent citation: 732
49	Semiconductor Energy Laboratory Co., Ltd.	Kanagawa, Japan	Semiconductor,Transistor,Semiconductor device, ...[+2]	patent citation: 730
50	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	patent citation: 693
51	Soken Chemical & Engineering Co., Ltd.	Tokyo, Japan	Adhesive,Chemical engineering,Adhesion, ...[+2]	patent citation: 663
52	Toshiba Mobile Display Technology Co., Ltd	Tokyo, Japan	Liquid-crystal display,Computer hardware,Electronics, ...[+2]	patent citation: 621
53	Toyo Ink SC Holdings Co., Ltd.	Hokkaido, Japan	Pigment,Manufacturing engineering,Coating, ...[+2]	patent citation: 560
54	Mitsubishi Plastics, Inc.	Tokyo, Japan	Bottle,Chemical engineering,Plastic film, ...[+2]	patent citation: 553
55	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	patent citation: 551
56	Japan Display Central, Inc.	Japan		patent citation: 514
57	Japan Display West, Inc.	Japan		patent citation: 488
58	DIC Corp.	Tokyo, Japan	Pigment,Chemical engineering,Synthetic resin, ...[+2]	patent citation: 478
59	DIC Corporation		Pigment,Polymer,Epoxy, ...[+2]	patent citation: 478
60	TDK Corp.	Tokyo, Japan	Electronic component,Ceramic capacitor,Electronics, ...[+2]	patent citation: 474
61	Saiden Chemical Industry Co., Ltd.	Tokyo, Japan	Coating,Industrial engineering,Adhesive, ...[+2]	patent citation: 462
62	Renesas Electronics Corp.	Tokyo, Japan	Semiconductor,Microcontroller,Electronics, ...[+2]	patent citation: 394
63	Tottori Sanyo Electric Co., Ltd.	Tottori, Japan	Display device,Electronics,Projector	patent citation: 374
64	Seiko Instruments, Inc.	Chiba, Japan	Semiconductor,Electronic component,Optical fiber connector, ...[+2]	patent citation: 361
65	Yamamoto Kogaku Co. Ltd.	Japan	Ammunition,sports equipment,Pleasure	patent citation: 361
66	Fuji Electronics Co., Ltd.	Tokyo, Japan	Semiconductor,Microcomputer,Electronic component, ...[+2]	patent citation: 353
67	Fuji Electric FA Components & SYstems Co., Ltd.	Tokyo, Japan	Semiconductor,Industrial engineering,Smart grid, ...[+2]	patent citation: 353
68	JX Nippon Oil & Energy Marine Service Corp.	Japan	Lubricant,Grease,p-Xylene, ...[+2]	patent citation: 348
69	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	patent citation: 347
70	Kuraray Co., Ltd.	Tokyo, Japan	Synthetic rubber,Isoprene,Vinyl acetate, ...[+2]	patent citation: 347
71	Oji Holdings Corp.	Tokyo, Japan	Containerboard,Paperboard,Thermal paper, ...[+2]	patent citation: 337
72	Nippon Seiki Co., Ltd.	Niigata, Japan	Vehicle inspection,Automotive engineering,Sales management, ...[+2]	patent citation: 331
73	Nihon Seiki Co., Ltd.	Osaka, Japan	Compressed air,Automation,Manufacturing engineering, ...[+2]	patent citation: 331
74	TOKIN Corp	Miyagi, Japan	Capacitor,Electronic component,Electromagnetic compatibility, ...[+2]	patent citation: 311
75	Hitachi Cable Ltd.	Tokyo, Japan	Electronics,Metal,Optical fiber, ...[+2]	patent citation: 310
76	Gunze Ltd.	Osaka, Japan	Textile,Suture (anatomy),Semiconductor, ...[+2]	patent citation: 295
77	Jasco Corp.	Japan		patent citation: 285
78	Furukawa Electric Co., Ltd.	Tokyo, Japan	Optical fiber,Renewable energy,Optoelectronics, ...[+2]	patent citation: 268
79	Alps Alpine Co., Ltd.	Tokyo, Japan	Electronic component,Electronics,Power transmission, ...[+2]	patent citation: 261
80	Yodogawa Medec Co. Ltd.	Japan		patent citation: 252
81	Toagosei Co., Ltd.	Tokyo, Japan	Adhesive,Chemical engineering,Polymer, ...[+2]	patent citation: 250
82	Yokogawa Electric Corp.	Tokyo, Japan	Automation,Systems design,Programmable logic controller, ...[+2]	patent citation: 247
83	OMRON Corp.	Kyoto, Japan	Automation,Electronics,Health care, ...[+2]	patent citation: 241
84	Daicel Corp.	Chiba, Japan	Airbag,Chemical engineering,Cellulose acetate, ...[+2]	patent citation: 231
85	Arisawa Mfg. Co., Ltd.	Niigata, Japan	Industrial engineering,Fiber,Fiber reinforcement, ...[+2]	patent citation: 231
86	Toyobo Film Solutions KK	Tokyo, Japan	Polyethylene naphthalate,Polyester,Industrial engineering, ...[+2]	patent citation: 231
87	Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Silicone,Semiconductor,Chemical engineering, ...[+2]	patent citation: 222
88	Photonic Lattice, Inc.	Miyagi, Japan	Photonic crystal,Semiconductor,Metamaterial, ...[+2]	patent citation: 222
89	Sumitomo Riko Co., Ltd.	Aichi, Japan	Electronics,Plastics engineering,Belting, ...[+2]	patent citation: 214
90	Japan Engineering Co., Ltd.	Kanagawa, Japan	Semiconductor,Automation,Manufacturing engineering, ...[+2]	patent citation: 214
91	Sumitomo Metal Mining Co., Ltd.	Tokyo, Japan	Nickel,Mining engineering,Natural resource management, ...[+2]	patent citation: 211
92	Asahi Kasei Chemicals Corp.	Tokyo, Japan	Chemical engineering,Ion-exchange membranes,Membrane, ...[+2]	patent citation: 203
93	NGK Insulators, Ltd.	Aichi, Japan	Beryllium copper,Industrial engineering,Pottery, ...[+2]	patent citation: 199
94	Tokyo Electron Ltd.	Tokyo, Japan	Semiconductor,Power transmission,Flat panel display, ...[+2]	patent citation: 198
95	Asahi Industry Co., Ltd.	Tokyo, Japan	Automation,Mechanical engineering,Manufacturing engineering, ...[+1]	patent citation: 197
96	MGC Filsheet Co., Ltd.	Japan		patent citation: 197
97	Chisso Corp.	Tokyo, Japan	Petrochemical,Liquid crystal,Chemical engineering, ...[+2]	patent citation: 196
98	Epson Imaging Devices Corp.	Nagano, Japan	Projector,Semiconductor	patent citation: 196
99	Shimadzu Corp.	Kyoto, Japan	Molecular diagnostics,Microbiology Test,Cockpit display system, ...[+2]	patent citation: 195
100	Fujitsu General Ltd.	Kanagawa, Japan	Air conditioning,Automation,Mechanical engineering, ...[+2]	patent citation: 191