Top 100 Key Players companies in Polyacrylic acid by Most Patent Citation in the Japan in 2018 – Discovery

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The Polyacrylic acid top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Citation Polyacrylic acid Key Players in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2018, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.

Poly(acrylic acid) (PAA; trade name Carbomer) is a synthetic high-molecular weight polymer of acrylic acid. The IUPAC name is poly(1-carboxyethylene). They may be homopolymers of acrylic acid, or crosslinked with an allyl ether of pentaerythritol, allyl ether of sucrose, or allyl ether of propylene. In a water solution at neutral pH, PAA is an anionic polymer, i.e. many of the side chains of PAA will lose their protons and acquire a negative charge. This makes PAAs polyelectrolytes, with the ability to absorb and retain water and swell to many times their original volume.

1	Nippon Shokubai Co., Ltd.	Tokyo, Japan	Polymer,Acrylic acid,Chemical engineering, ...[+2]	patent citation: 3,942
2	KOSÉ Corp.	Tokyo, Japan	Cosmetics,Fast-moving consumer goods,Added value, ...[+2]	patent citation: 858
3	Lion Corp.	Tokyo, Japan	Toothpaste,Fast-moving consumer goods,Laundry, ...[+2]	patent citation: 839
4	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	patent citation: 641
5	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	patent citation: 641
6	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	patent citation: 539
7	Kao Corp.	Tokyo, Japan	Cosmetics,Health care,Hair conditioner, ...[+2]	patent citation: 510
8	A&D Holon Holdings Co., Ltd.	Tokyo, Japan	Health care,Electronics,Robotics, ...[+2]	patent citation: 425
9	Toyobo Co., Ltd.	Osaka, Japan	Chemical engineering,Synthetic rubber,Membrane, ...[+2]	patent citation: 412
10	Showa Denko Materials Co., Ltd.	Tokyo, Japan	Semiconductor,Carbon product,Efficient energy use, ...[+2]	patent citation: 394
11	Kuraray Co., Ltd.	Tokyo, Japan	Synthetic rubber,Isoprene,Vinyl acetate, ...[+2]	patent citation: 352
12	Teijin Ltd.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polycarbonate, ...[+2]	patent citation: 340
13	Sekisui Kasei Co., Ltd.	Osaka, Japan	Civil engineering,Chemical engineering,Health care, ...[+2]	patent citation: 325
14	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	patent citation: 277
15	Sumitomo Chemical Co., Ltd.	Tokyo, Japan	Petrochemical,Agriculture,Pesticide, ...[+2]	patent citation: 241
16	Shiseido Co., Ltd.	Tokyo, Japan	Cosmetics,Elixir,Personal Care Product, ...[+2]	patent citation: 233
17	Unitika Ltd.	Osaka, Japan	Fiber,Textile (markup language),Polymer, ...[+2]	patent citation: 202
18	Nippon Paint Holdings Co., Ltd.	Osaka, Japan	Coating,Fine chemical,Varnish, ...[+2]	patent citation: 201
19	Nippon Kayaku Co., Ltd.	Tokyo, Japan	Biosimilar,Chemical engineering,Industrial engineering, ...[+2]	patent citation: 197
20	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	patent citation: 185
21	Tosoh Corp.	Tokyo, Japan	Petrochemical,Chemical engineering,Immunoprotein, ...[+2]	patent citation: 183
22	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	patent citation: 183
23	Arakawa Chemical Industries Ltd.	Osaka, Japan	Rosin,Adhesion,Paper mill, ...[+2]	patent citation: 167
24	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	patent citation: 164
25	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	patent citation: 155
26	Renaissance Energy Research Corp.	Osaka, Japan	Hydrogen production,Search engine,Unified communications, ...[+2]	patent citation: 152
27	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	patent citation: 151
28	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	patent citation: 141
29	NOF Corp.	Tokyo, Japan	Organic peroxide,Chemical engineering,Fatty acid, ...[+2]	patent citation: 141
30	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	patent citation: 137
31	Toagosei Co., Ltd.	Tokyo, Japan	Adhesive,Chemical engineering,Polymer, ...[+2]	patent citation: 131
32	Wako Pure Chemical Industries Ltd	Osaka, Japan	Medicine,Diagnostic Reagent,Laboratory chemicals, ...[+2]	patent citation: 127
33	Sekisui Chemical Co., Ltd.	Osaka, Japan	Synthetic rubber,Industrial engineering,Polyvinyl chloride, ...[+2]	patent citation: 123
34	Furukawa Electric Co., Ltd.	Tokyo, Japan	Optical fiber,Renewable energy,Optoelectronics, ...[+2]	patent citation: 120
35	Pentel Co., Ltd.	Tokyo, Japan	Industrial robot,School supplies,Pencil (mathematics)	patent citation: 117
36	Toshiba Battery Co., Ltd.	Tokyo, Japan	Electronics	patent citation: 116
37	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	patent citation: 112
38	Daicel Corp.	Chiba, Japan	Airbag,Chemical engineering,Cellulose acetate, ...[+2]	patent citation: 112
39	TOKYO OHKA KOGYO CO., LTD.	Kanagawa, Japan	Photoresist,Semiconductor,Petrochemical, ...[+2]	patent citation: 112
40	Kureha Corp.	Hokkaido, Japan	Chemical engineering,Polyvinylidene fluoride,Wallpaper, ...[+2]	patent citation: 111
41	Nippon Telegraph & Telephone Corp.	Tokyo, Japan	Telecommunications,Cloud database,Data center, ...[+2]	patent citation: 105
42	Lead Chemical Co., Ltd.	Tokyo, Japan	Raw material,Medicine	patent citation: 105
43	Teikoku Seiyaku Co. Ltd.	Yamaguchi, Japan	Drug,Glycerin enema,Poultice, ...[+2]	patent citation: 103
44	Sakura Color Products Corp.	Osaka, Japan	Shopping mall	patent citation: 100
45	NIPPON STEEL Stainless Steel Corp.	Tokyo, Japan	Mill,Metal,Mining engineering, ...[+1]	patent citation: 97
46	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	patent citation: 95
47	Nippon Zeon Co., Ltd.	Tokyo, Japan	Chemical engineering,Solid-state battery,Supercapacitor, ...[+1]	patent citation: 95
48	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	patent citation: 93
49	Bando Chemical Industries Ltd.	Hyogo, Japan	Elastomer,Belting,Natural rubber, ...[+2]	patent citation: 90
50	Kanebo Ltd.	Tokyo, Japan	Textile,Cosmetics,Food products, ...[+2]	patent citation: 89
51	Evonik Degussa Japan Co., Ltd.	Tokyo, Japan		patent citation: 88
52	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	patent citation: 86
53	Tokiwa Corp.	Tokyo, Japan	Cosmetics	patent citation: 84
54	Tokiwa KK	Tokushima, Japan	Forestry,Paper mill	patent citation: 84
55	Idemitsu Petrochemical Co., Ltd.	Tokyo, Japan	Petrochemical,Chemical engineering,Butene, ...[+2]	patent citation: 82
56	Toyota Industries Corp.	Aichi, Japan	Textile,Software,Automotive engineering, ...[+2]	patent citation: 80
57	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	patent citation: 78
58	JohnsonDiversey Co. Ltd.	Kumamoto, Japan	SOAP	patent citation: 78
59	Renesas Electronics Corp.	Tokyo, Japan	Semiconductor,Microcontroller,Electronics, ...[+2]	patent citation: 75
60	Taisho Pharmaceutical Co., Ltd.	Tokyo, Japan	Medicine,Self-medication,Drug, ...[+2]	patent citation: 72
61	Panasonic Intellectual Property Management Co. Ltd.	Osaka, Japan		patent citation: 72
62	Funai Electric Co., Ltd.	Osaka, Japan	Electronics,Computer hardware,Blu-ray disc, ...[+2]	patent citation: 70
63	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	patent citation: 68
64	Sumitomo Osaka Cement Co., Ltd.	Tokyo, Japan	Cement,Building material,Precipitated calcium carbonate, ...[+2]	patent citation: 66
65	Nichi-Iko Pharmaceutical Co., Ltd.	Toyama, Japan	Generic drug,Biosimilar,Drug, ...[+2]	patent citation: 66
66	Sanyo Chemical Industries, Ltd.	Kyoto, Japan	Chemical engineering,Polyurethane,Superabsorbent polymer, ...[+2]	patent citation: 64
67	Takara Shuzo Co., Ltd.	Kyoto, Japan	Seasoning,Ethanol,Food industry, ...[+2]	patent citation: 61
68	Kowa Co., Ltd.	Aichi, Japan	Medicine,Medical equipment,Textile, ...[+2]	patent citation: 60
69	Sumitomo Seika Chemicals Co., Ltd.	Osaka, Japan	Polymer,Chemical engineering,Sanitary napkin, ...[+2]	patent citation: 60
70	Sato Pharmaceutical Co., Ltd.	Tokyo, Japan	Self-medication,Medicine,Biomedicine, ...[+2]	patent citation: 60
71	Nagoya Oilchemical Co. Ltd.	Japan		patent citation: 60
72	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		patent citation: 60
73	TDK Corp.	Tokyo, Japan	Electronic component,Ceramic capacitor,Electronics, ...[+2]	patent citation: 59
74	Nippon Light Metal Co., Ltd.	Tokyo, Japan	Metal,Precious metal,Mining engineering, ...[+2]	patent citation: 59
75	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	patent citation: 58
76	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	patent citation: 58
77	Suntec Co., Ltd.	Kyoto, Japan	Electronics,Software,Computer hardware, ...[+2]	patent citation: 58
78	Pola Chemical Industries, Inc.	Kanagawa, Japan	Chemical industry,Shopping mall,Cosmetics	patent citation: 56
79	Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Silicone,Semiconductor,Chemical engineering, ...[+2]	patent citation: 55
80	Fujimi, Inc.	Aichi, Japan	Abrasive,Industrial engineering,Diamond, ...[+2]	patent citation: 54
81	Kirin Brewery Co., Ltd.	Tokyo, Japan	Epoetin alfa,Food industry,Aloe vera, ...[+2]	patent citation: 54
82	Nippon Steel Nisshin Co., Ltd.	Tokyo, Japan	Construction engineering	patent citation: 53
83	Medrx Co., Ltd.	Yamaguchi, Japan	Hospitality industry,Medicine,Health care, ...[+2]	patent citation: 53
84	Dai Nippon Printing Co., Ltd.	Tokyo, Japan	Electronics,Publishing,Publication, ...[+2]	patent citation: 52
85	Dainippon Printing Co. Ltd.	Japan		patent citation: 52
86	Medikit Co., Ltd.	Tokyo, Japan	IV catheter,Medical equipment,Health care, ...[+2]	patent citation: 51
87	Nikko Chemicals Co., Ltd.	Tokyo, Japan	Eicosapentaenoic acid,Cosmetics,Shopping mall, ...[+2]	patent citation: 51
88	Mitsubishi Paper Mills Ltd.	Tokyo, Japan	Paperboard,Thermal paper,3D printing, ...[+2]	patent citation: 50
89	Otsuka Pharmaceutical Co., Ltd.	Tokyo, Japan	Nutraceutical,Health care,Cosmetics, ...[+2]	patent citation: 49
90	Takeda Pharmaceutical Co., Ltd.	Osaka, Japan	Medicine,Health care,Clinical trial, ...[+2]	patent citation: 48
91	Takeda Chemical Industries Ltd.	Japan	Pharmaceutical drug,Botanical drug,Herb	patent citation: 48
92	Kawasaki Steel Corp.	Japan		patent citation: 48
93	Kaneka Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polyvinyl chloride, ...[+2]	patent citation: 46
94	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	patent citation: 45
95	Seatec Co., Ltd.	Japan		patent citation: 45
96	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	patent citation: 44
97	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	patent citation: 44
98	Konica Minolta, Inc.	Tokyo, Japan	Medical imaging,Attractiveness,Product group, ...[+2]	patent citation: 43
99	Central Glass Co., Ltd.	Tokyo, Japan	Glazing,Fine chemical,Chemical engineering, ...[+2]	patent citation: 43
100	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	patent citation: 42