Top 100 Key Players companies in Photomask by Most Patent Filings in the Japan in 2021 – Discovery

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1	Semiconductor Energy Laboratory Co., Ltd.	Kanagawa, Japan	Semiconductor,Transistor,Semiconductor device, ...[+2]	Patent: 3,455
2	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	Patent: 742
3	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	Patent: 726
4	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	Patent: 595
5	Fujitsu Ltd.	Tokyo, Japan	Cloud computing,Enterprise software,Information technology management, ...[+2]	Patent: 577
6	Renesas Electronics Corp.	Tokyo, Japan	Semiconductor,Microcontroller,Electronics, ...[+2]	Patent: 525
7	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		Patent: 371
8	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	Patent: 370
9	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	Patent: 274
10	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	Patent: 274
11	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	Patent: 231
12	HOYA Corp.	Tokyo, Japan	Computer hardware,Software,Intraocular lens, ...[+2]	Patent: 156
13	STARTUP KIOXIA Corp.	Tokyo, Japan	Computer hardware,Solid-state,Flash memory, ...[+2]	Patent: 144
14	Fuji Electronics Co., Ltd.	Tokyo, Japan	Semiconductor,Microcomputer,Electronic component, ...[+2]	Patent: 139
15	Fuji Electric FA Components & SYstems Co., Ltd.	Tokyo, Japan	Semiconductor,Industrial engineering,Smart grid, ...[+2]	Patent: 139
16	Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Silicone,Semiconductor,Chemical engineering, ...[+2]	Patent: 124
17	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	Patent: 116
18	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	Patent: 116
19	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	Patent: 113
20	Dai Nippon Printing Co., Ltd.	Tokyo, Japan	Electronics,Publishing,Publication, ...[+2]	Patent: 104
21	Dainippon Printing Co. Ltd.	Japan		Patent: 104
22	Tokyo Electron Ltd.	Tokyo, Japan	Semiconductor,Power transmission,Flat panel display, ...[+2]	Patent: 102
23	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	Patent: 88
24	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	Patent: 88
25	Socionext, Inc.	Kyoto, Japan	Quality of experience,Semiconductor device fabrication,Semiconductor, ...[+2]	Patent: 87
26	Nichia Corp.	Tokushima, Japan	Laser diode,Semiconductor,LED lamp, ...[+2]	Patent: 81
27	Fujitsu Semiconductor Ltd.	Kanagawa, Japan	Semiconductor,Electronic component,Microcontroller, ...[+2]	Patent: 81
28	Showa Denko Materials Co., Ltd.	Tokyo, Japan	Semiconductor,Carbon product,Efficient energy use, ...[+2]	Patent: 77
29	Nikon Corp.	Tokyo, Japan	Microscope,Photography,Motion capture, ...[+2]	Patent: 74
30	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	Patent: 68
31	Seiko Instruments, Inc.	Chiba, Japan	Semiconductor,Electronic component,Optical fiber connector, ...[+2]	Patent: 64
32	Citizen Watch Co., Ltd.	Tokyo, Japan	Quartz,Semiconductor,Electronics, ...[+2]	Patent: 63
33	TOKYO OHKA KOGYO CO., LTD.	Kanagawa, Japan	Photoresist,Semiconductor,Petrochemical, ...[+2]	Patent: 63
34	NEC Electronics Corp.	Kanagawa, Japan	Electronics,Computer hardware,Semiconductor, ...[+2]	Patent: 43
35	IBIDEN Co., Ltd.	Gifu, Japan	Electronics,Semiconductor,Asphalt, ...[+2]	Patent: 41
36	Hitachi Kokusai Electric, Inc.	Saga, Japan	Semiconductor,Electronics,Thin film, ...[+2]	Patent: 41
37	Hitachi Ulsi Systems Co. Ltd.	Tokyo, Japan	Semiconductor,Automation,Manufacturing engineering, ...[+2]	Patent: 37
38	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	Patent: 35
39	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	Patent: 35
40	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	Patent: 35
41	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	Patent: 34
42	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	Patent: 34
43	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	Patent: 30
44	Elpida Memory, Inc.	Tokyo, Japan	Semiconductor,Dynamic random-access memory,Resistor, ...[+2]	Patent: 30
45	Floadia Corp.	Tokyo, Japan	Semiconductor,Non-volatile memory,Flash memory, ...[+2]	Patent: 26
46	Stanley Electric Co., Ltd.	Tokyo, Japan	Headlamp,Automotive engineering,Backlight, ...[+2]	Patent: 25
47	Panasonic Liquid Crystal Display Co., Ltd.	Hyogo, Japan	Liquid-crystal display,Electronics	Patent: 25
48	Mitsui Chemistry Joint-stock Co.	Japan		Patent: 23
49	Toyoda Gosei Co., Ltd.	Aichi, Japan	Optoelectronics,Airbag,Synthetic rubber, ...[+2]	Patent: 22
50	Hamamatsu Photonics KK	Shizuoka, Japan	Semiconductor,Photonics,Laser, ...[+2]	Patent: 22
51	JSR Corp.	Tokyo, Japan	Synthetic rubber,Natural rubber,Elastomer, ...[+2]	Patent: 21
52	Yamaha Corp.	Shizuoka, Japan	Audio equipment,Gasoline,Loudspeaker, ...[+2]	Patent: 20
53	Kyocera Corp.	Kyoto, Japan	Semiconductor,Electronics,Telecommunications, ...[+2]	Patent: 18
54	TDK Corp.	Tokyo, Japan	Electronic component,Ceramic capacitor,Electronics, ...[+2]	Patent: 18
55	Casio Electronics Manufacturing Co., Ltd.	Saitama, Japan		Patent: 17
56	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	Patent: 15
57	Advantest Corp.	Tokyo, Japan	Semiconductor,Mechanical engineering,Product design, ...[+2]	Patent: 15
58	Shinko Electric Industries Co., Ltd.	Nagano, Japan	Semiconductor,Packaging engineering,Integrated circuit, ...[+2]	Patent: 15
59	JOLED, Inc.	Tokyo, Japan	Electroluminescent display,Cryptocurrency,Android (robot), ...[+2]	Patent: 13
60	Nissan Motor Co., Ltd.	Kanagawa, Japan	Truck,Public transport,Automotive engineering, ...[+2]	Patent: 12
61	Sumitomo Bakelite Co., Ltd.	Tokyo, Japan	Semiconductor,Materials science,Bakelite, ...[+2]	Patent: 12
62	Novuton Technology Corp. Japan	Kyoto, Japan	Semiconductor,Laser diode,Integrated circuit, ...[+2]	Patent: 12
63	Ulvac Coating Corp.	Saitama, Japan	Semiconductor,Coating,Electronic component	Patent: 12
64	Furukawa Electric Co., Ltd.	Tokyo, Japan	Optical fiber,Renewable energy,Optoelectronics, ...[+2]	Patent: 11
65	Japan Display, Inc.	Tokyo, Japan	Semiconductor,Electronic visual display,Navigation system, ...[+2]	Patent: 11
66	Shanken Electric Co. Ltd.	Japan		Patent: 11
67	Kaneka Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polyvinyl chloride, ...[+2]	Patent: 10
68	Sakai Display Products Corp.	Osaka, Japan	Liquid crystal,Electronics,Computer hardware, ...[+2]	Patent: 10
69	Toshiba Microelectronics Corp.	Kanagawa, Japan		Patent: 10
70	Sumitomo Heavy Industries, Ltd.	Tokyo, Japan	Sewage treatment,Proton therapy,Cryocooler, ...[+2]	Patent: 9
71	DISCO Corp.	Tokyo, Japan	Semiconductor,Manufacturing engineering,Industrial engineering, ...[+2]	Patent: 9
72	Sony Semiconductor Solutions Corp.	Kanagawa, Japan	Semiconductor,Image sensor,CMOS sensor, ...[+2]	Patent: 9
73	NEC LCD Technologies Ltd.	Kanagawa, Japan	Liquid-crystal display,Computer hardware,Electronics	Patent: 9
74	Ebara Corp.	Tokyo, Japan	Vacuum pump,Manufacturing engineering,Turbine, ...[+2]	Patent: 8
75	Pioneer Corp.	Fukushima, Japan	Navigation system,Laserdisc player,Electronic product, ...[+2]	Patent: 8
76	Hitachi Electronic Engineering Co., Ltd.	Tokyo, Japan	Electronic engineering,Computer hardware,Electronics, ...[+1]	Patent: 8
77	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	Patent: 7
78	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	Patent: 7
79	Yokogawa Electric Corp.	Tokyo, Japan	Automation,Systems design,Programmable logic controller, ...[+2]	Patent: 7
80	Canon Anelva Corp.	Tokyo, Japan	Semiconductor,Electronic component,Chemical vapor deposition, ...[+2]	Patent: 7
81	M. Watanabe & Co. Ltd.	Tokyo, Japan	Semiconductor,Semiconductor device,Electronic component	Patent: 7
82	Advanced Industrial Science & Technology	Tokyo, Japan	Graphene,Association (object-oriented programming)	Patent: 7
83	Semiconductor Leading Edge Technologies, Inc.	Japan		Patent: 7
84	Honda Motor Co., Ltd.	Tokyo, Japan	Automotive engineering,Manufacturing engineering,Sport utility vehicle, ...[+2]	Patent: 6
85	Tosoh Corp.	Tokyo, Japan	Petrochemical,Chemical engineering,Immunoprotein, ...[+2]	Patent: 6
86	Alps Alpine Co., Ltd.	Tokyo, Japan	Electronic component,Electronics,Power transmission, ...[+2]	Patent: 6
87	Organo Corp.	Tokyo, Japan	Water treatment,Manufacturing engineering,Microfiltration, ...[+2]	Patent: 6
88	Shin-Etsu Handotai Co., Ltd.	Tokyo, Japan	Semiconductor,Ingot,Wafer, ...[+2]	Patent: 6
89	NGR, Inc.	Kanagawa, Japan	Semiconductor,Automation,Manufacturing engineering, ...[+2]	Patent: 6
90	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	Patent: 5
91	Shimadzu Corp.	Kyoto, Japan	Molecular diagnostics,Microbiology Test,Cockpit display system, ...[+2]	Patent: 5
92	NGK SPARK PLUG CO., LTD.	Aichi, Japan	Spark plug,Automotive engineering,Ceramic art, ...[+2]	Patent: 5
93	Shin-Etsu Polymer Co., Ltd.	Tokyo, Japan	Semiconductor,Chemical engineering,Ductile iron pipe, ...[+2]	Patent: 5
94	Mitsumi Electric Co., Ltd.	Osaka, Japan	Semiconductor,Metal,Electronic component, ...[+2]	Patent: 5
95	Citizen Electronics Co., Ltd.	Yamanashi, Japan	Electronics,Solid-state lighting,Electrical equipment, ...[+2]	Patent: 5
96	Holon Co., Ltd.	Tokyo, Japan	Semiconductor,Surface-mount technology,Computer hardware, ...[+2]	Patent: 5
97	Oki Data Corp.	Tokyo, Japan	Electronics,Monochrome,Light-emitting diode, ...[+1]	Patent: 5
98	Advanced LCD Technologies Development Center Co., Ltd.	Tochigi, Japan		Patent: 5
99	Japan Display Central, Inc.	Japan		Patent: 5
100	Hitachi Metals, Ltd.	Chiba, Japan	Metal,Magnet,Telecommunications, ...[+2]	Patent: 4