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

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

Etching is traditionally the process of using strong acid or mordant to cut into the unprotected parts of a metal surface to create a design in intaglio (incised) in the metal. In modern manufacturing, other chemicals may be used on other types of material. As a method of printmaking, it is, along with engraving, the most important technique for old master prints, and remains in wide use today. In a number of modern variants such as microfabrication etching and photochemical milling it is a crucial technique in much modern technology, including circuit boards.

1	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	patent citation: 10,209
2	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	patent citation: 8,573
3	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	patent citation: 7,146
4	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	patent citation: 7,146
5	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	patent citation: 6,514
6	Fujitsu Ltd.	Tokyo, Japan	Cloud computing,Enterprise software,Information technology management, ...[+2]	patent citation: 6,147
7	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		patent citation: 5,939
8	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	patent citation: 5,358
9	Tokyo Electron Ltd.	Tokyo, Japan	Semiconductor,Power transmission,Flat panel display, ...[+2]	patent citation: 4,291
10	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	patent citation: 3,974
11	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	patent citation: 3,903
12	Semiconductor Energy Laboratory Co., Ltd.	Kanagawa, Japan	Semiconductor,Transistor,Semiconductor device, ...[+2]	patent citation: 3,322
13	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	patent citation: 2,541
14	Renesas Electronics Corp.	Tokyo, Japan	Semiconductor,Microcontroller,Electronics, ...[+2]	patent citation: 1,836
15	Oki Electric Industry Co., Ltd.	Tokyo, Japan	Telecommunications,Call centre,Software, ...[+2]	patent citation: 1,776
16	Nippon Telegraph & Telephone Corp.	Tokyo, Japan	Telecommunications,Cloud database,Data center, ...[+2]	patent citation: 1,618
17	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	patent citation: 1,537
18	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	patent citation: 1,246
19	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	patent citation: 1,246
20	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	patent citation: 1,095
21	Shin-Etsu Handotai Co., Ltd.	Tokyo, Japan	Semiconductor,Ingot,Wafer, ...[+2]	patent citation: 1,055
22	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	patent citation: 1,052
23	NEC Electronics Corp.	Kanagawa, Japan	Electronics,Computer hardware,Semiconductor, ...[+2]	patent citation: 985
24	Dai Nippon Printing Co., Ltd.	Tokyo, Japan	Electronics,Publishing,Publication, ...[+2]	patent citation: 910
25	Dainippon Printing Co. Ltd.	Japan		patent citation: 910
26	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	patent citation: 871
27	Toyoda Gosei Co., Ltd.	Aichi, Japan	Optoelectronics,Airbag,Synthetic rubber, ...[+2]	patent citation: 796
28	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	patent citation: 781
29	Showa Denko Materials Co., Ltd.	Tokyo, Japan	Semiconductor,Carbon product,Efficient energy use, ...[+2]	patent citation: 754
30	DENSO Corp.	Aichi, Japan	Automotive engineering,Industrial robot,Programmable logic controller, ...[+2]	patent citation: 743
31	Fuji Electronics Co., Ltd.	Tokyo, Japan	Semiconductor,Microcomputer,Electronic component, ...[+2]	patent citation: 738
32	Fuji Electric FA Components & SYstems Co., Ltd.	Tokyo, Japan	Semiconductor,Industrial engineering,Smart grid, ...[+2]	patent citation: 738
33	Renesas Technology Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	patent citation: 715
34	ROHM Co., Ltd.	Kyoto, Japan	Semiconductor,Electronic component,Power module, ...[+2]	patent citation: 662
35	Seiko Instruments, Inc.	Chiba, Japan	Semiconductor,Electronic component,Optical fiber connector, ...[+2]	patent citation: 586
36	HOYA Corp.	Tokyo, Japan	Computer hardware,Software,Intraocular lens, ...[+2]	patent citation: 577
37	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	patent citation: 560
38	Nippon Sheet Glass Co., Ltd.	Tokyo, Japan	Glazing,Flat glass,Timing belt, ...[+2]	patent citation: 551
39	NIPPON STEEL Stainless Steel Corp.	Tokyo, Japan	Mill,Metal,Mining engineering, ...[+1]	patent citation: 540
40	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	patent citation: 518
41	Murata Manufacturing Co. Ltd.	Kyoto, Japan	Semiconductor,Electronics,Electronic component, ...[+2]	patent citation: 487
42	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	patent citation: 482
43	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	patent citation: 482
44	Citizen Watch Co., Ltd.	Tokyo, Japan	Quartz,Semiconductor,Electronics, ...[+2]	patent citation: 455
45	Taisei Plas Co. Ltd.	Japan		patent citation: 454
46	SUMCO Corp.	Tokyo, Japan	Semiconductor,Wafer,Silicon, ...[+2]	patent citation: 447
47	TDK Corp.	Tokyo, Japan	Electronic component,Ceramic capacitor,Electronics, ...[+2]	patent citation: 428
48	Shinko Electric Industries Co., Ltd.	Nagano, Japan	Semiconductor,Packaging engineering,Integrated circuit, ...[+2]	patent citation: 412
49	Yamaha Corp.	Shizuoka, Japan	Audio equipment,Gasoline,Loudspeaker, ...[+2]	patent citation: 400
50	ULVAC, Inc.	Fukushima, Japan	Semiconductor,Vacuum pump,Sputtering, ...[+2]	patent citation: 400
51	TOKYO OHKA KOGYO CO., LTD.	Kanagawa, Japan	Photoresist,Semiconductor,Petrochemical, ...[+2]	patent citation: 395
52	Fujitsu Semiconductor Ltd.	Kanagawa, Japan	Semiconductor,Electronic component,Microcontroller, ...[+2]	patent citation: 391
53	JX Nippon Mining & Metals Corp.	Tokyo, Japan	Non-ferrous metal,Cathode material,Mining engineering, ...[+2]	patent citation: 386
54	Kawasaki Steel Corp.	Japan		patent citation: 375
55	LAPIS Semiconductor Co., Ltd.	Kanagawa, Japan	Semiconductor,Microcontroller,Information appliance, ...[+2]	patent citation: 372
56	Yokogawa Electric Corp.	Tokyo, Japan	Automation,Systems design,Programmable logic controller, ...[+2]	patent citation: 362
57	Hitachi Cable Ltd.	Tokyo, Japan	Electronics,Metal,Optical fiber, ...[+2]	patent citation: 362
58	Kyocera Corp.	Kyoto, Japan	Semiconductor,Electronics,Telecommunications, ...[+2]	patent citation: 360
59	Furukawa Electric Co., Ltd.	Tokyo, Japan	Optical fiber,Renewable energy,Optoelectronics, ...[+2]	patent citation: 358
60	ASM Japan KK	Tokyo, Japan	Human resources	patent citation: 358
61	Casio Computer Co., Ltd.	Tokyo, Japan	Projector,Electronics,Digital camera, ...[+2]	patent citation: 356
62	Casio Electronics Manufacturing Co., Ltd.	Saitama, Japan		patent citation: 356
63	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	patent citation: 355
64	DISCO Corp.	Tokyo, Japan	Semiconductor,Manufacturing engineering,Industrial engineering, ...[+2]	patent citation: 342
65	Nissan Motor Co., Ltd.	Kanagawa, Japan	Truck,Public transport,Automotive engineering, ...[+2]	patent citation: 331
66	Fujikura Ltd.	Tokyo, Japan	Mobile device,Optoelectronics,Optical fiber, ...[+2]	patent citation: 323
67	Fujifilm Business Innovation Corp.	Chiba, Japan	Electronics,Inkjet printing,Vertical-cavity surface-emitting laser, ...[+2]	patent citation: 308
68	NGK Insulators, Ltd.	Aichi, Japan	Beryllium copper,Industrial engineering,Pottery, ...[+2]	patent citation: 295
69	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	patent citation: 288
70	NEC Toppan Circuit Solutions, Inc.	Tokyo, Japan	Semiconductor,Electronic component,Electronics, ...[+2]	patent citation: 288
71	Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Silicone,Semiconductor,Chemical engineering, ...[+2]	patent citation: 277
72	Mitsubishi Materials Corp.	Tokyo, Japan	Cement,Alloy,Polycrystalline silicon, ...[+2]	patent citation: 270
73	Mitsubishi Materials Techno Corp.	Japan		patent citation: 270
74	SCREEN Holdings Co., Ltd.	Kyoto, Japan	Semiconductor,Wafer fabrication,Flat panel display, ...[+2]	patent citation: 249
75	Miyazaki Oki Electric Co. Ltd.	Japan		patent citation: 248
76	IBIDEN Co., Ltd.	Gifu, Japan	Electronics,Semiconductor,Asphalt, ...[+2]	patent citation: 247
77	Alps Alpine Co., Ltd.	Tokyo, Japan	Electronic component,Electronics,Power transmission, ...[+2]	patent citation: 245
78	Sumitomo Chemical Co., Ltd.	Tokyo, Japan	Petrochemical,Agriculture,Pesticide, ...[+2]	patent citation: 244
79	Sumitomo Metal Mining Co., Ltd.	Tokyo, Japan	Nickel,Mining engineering,Natural resource management, ...[+2]	patent citation: 244
80	Hitachi Kokusai Electric, Inc.	Saga, Japan	Semiconductor,Electronics,Thin film, ...[+2]	patent citation: 242
81	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	patent citation: 234
82	Mitsui Mining & Smelting Co., Ltd.	Tokyo, Japan	Precious metal,Metal,Cathode material, ...[+2]	patent citation: 228
83	DAIKIN INDUSTRIES Ltd.	Osaka, Japan	Air conditioning,Refrigeration,Mechanical engineering, ...[+2]	patent citation: 227
84	Daikin Airconditioning France SAS	Osaka, Japan	Industrial engineering,Fluorochemical industry,Air conditioning, ...[+1]	patent citation: 227
85	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	patent citation: 222
86	DOWA HOLDINGS Co., Ltd.	Tokyo, Japan	Metal,Mining engineering,Natural resource management, ...[+2]	patent citation: 215
87	Furukawa Kogyo Co., Ltd.	Japan		patent citation: 215
88	Mec Co., Ltd.	Hyogo, Japan	Chemical engineering,Hydrofluoric acid,Hydrochloric acid, ...[+2]	patent citation: 210
89	Elpida Memory, Inc.	Tokyo, Japan	Semiconductor,Dynamic random-access memory,Resistor, ...[+2]	patent citation: 209
90	Sumitomo Metal Industries Ltd.	Osaka, Japan	Metal,Semiconductor,Casting, ...[+2]	patent citation: 203
91	UBE Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Coal mining, ...[+2]	patent citation: 196
92	Idemitsu Kosan Co., Ltd.	Tokyo, Japan	Petrochemical,Lubricant,Petroleum, ...[+2]	patent citation: 196
93	Shimadzu Corp.	Kyoto, Japan	Molecular diagnostics,Microbiology Test,Cockpit display system, ...[+2]	patent citation: 187
94	Pioneer Corp.	Fukushima, Japan	Navigation system,Laserdisc player,Electronic product, ...[+2]	patent citation: 181
95	Nippon Light Metal Co., Ltd.	Tokyo, Japan	Metal,Precious metal,Mining engineering, ...[+2]	patent citation: 181
96	JSR Corp.	Tokyo, Japan	Synthetic rubber,Natural rubber,Elastomer, ...[+2]	patent citation: 179
97	Nikon Corp.	Tokyo, Japan	Microscope,Photography,Motion capture, ...[+2]	patent citation: 178
98	Hitachi Ulsi Systems Co. Ltd.	Tokyo, Japan	Semiconductor,Automation,Manufacturing engineering, ...[+2]	patent citation: 174
99	Nippon Peroxide Co. Ltd.	Tokyo, Japan	Hydrogen peroxide,Chemical engineering	patent citation: 173
100	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	patent citation: 171