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

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The Polyacrylic acid top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Filings Polyacrylic acid 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.

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: 452
2	Lion Corp.	Tokyo, Japan	Toothpaste,Fast-moving consumer goods,Laundry, ...[+2]	Patent: 155
3	Kao Corp.	Tokyo, Japan	Cosmetics,Health care,Hair conditioner, ...[+2]	Patent: 132
4	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	Patent: 103
5	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	Patent: 100
6	Shiseido Co., Ltd.	Tokyo, Japan	Cosmetics,Elixir,Personal Care Product, ...[+2]	Patent: 97
7	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	Patent: 67
8	Showa Denko Materials Co., Ltd.	Tokyo, Japan	Semiconductor,Carbon product,Efficient energy use, ...[+2]	Patent: 65
9	Nippon Kayaku Co., Ltd.	Tokyo, Japan	Biosimilar,Chemical engineering,Industrial engineering, ...[+2]	Patent: 53
10	Sumitomo Chemical Co., Ltd.	Tokyo, Japan	Petrochemical,Agriculture,Pesticide, ...[+2]	Patent: 47
11	Sekisui Kasei Co., Ltd.	Osaka, Japan	Civil engineering,Chemical engineering,Health care, ...[+2]	Patent: 47
12	Toray Industries, Inc.	Tokyo, Japan	Fiber,Textile,Textile (markup language), ...[+2]	Patent: 45
13	Tosoh Corp.	Tokyo, Japan	Petrochemical,Chemical engineering,Immunoprotein, ...[+2]	Patent: 45
14	Kuraray Co., Ltd.	Tokyo, Japan	Synthetic rubber,Isoprene,Vinyl acetate, ...[+2]	Patent: 44
15	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	Patent: 41
16	Toyota Motor Corp.	Aichi, Japan	Sport utility vehicle,Mobile device,Public transport, ...[+2]	Patent: 38
17	FUJIFILM Corp.	Tokyo, Japan	Photography,Medical imaging,Computer hardware, ...[+2]	Patent: 38
18	Daicel Corp.	Chiba, Japan	Airbag,Chemical engineering,Cellulose acetate, ...[+2]	Patent: 37
19	Sekisui Chemical Co., Ltd.	Osaka, Japan	Synthetic rubber,Industrial engineering,Polyvinyl chloride, ...[+2]	Patent: 36
20	Toyota Industries Corp.	Aichi, Japan	Textile,Software,Automotive engineering, ...[+2]	Patent: 36
21	Showa Denko K.K.	Chiba, Japan	Graphite,Materials science,Nanomaterials, ...[+2]	Patent: 36
22	Panasonic Intellectual Property Management Co. Ltd.	Osaka, Japan		Patent: 36
23	Shin-Etsu Chemical Co., Ltd.	Tokyo, Japan	Silicone,Semiconductor,Chemical engineering, ...[+2]	Patent: 34
24	Kobe Steel, Ltd.	Hyogo, Japan	Welding,Electronics,Mining engineering, ...[+2]	Patent: 32
25	Toagosei Co., Ltd.	Tokyo, Japan	Adhesive,Chemical engineering,Polymer, ...[+2]	Patent: 32
26	Otsuka Pharmaceutical Co., Ltd.	Tokyo, Japan	Nutraceutical,Health care,Cosmetics, ...[+2]	Patent: 32
27	Teijin Ltd.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polycarbonate, ...[+2]	Patent: 30
28	Toyobo Co., Ltd.	Osaka, Japan	Chemical engineering,Synthetic rubber,Membrane, ...[+2]	Patent: 30
29	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	Patent: 29
30	Nippon Paint Holdings Co., Ltd.	Osaka, Japan	Coating,Fine chemical,Varnish, ...[+2]	Patent: 27
31	Teikoku Seiyaku Co. Ltd.	Yamaguchi, Japan	Drug,Glycerin enema,Poultice, ...[+2]	Patent: 27
32	Toshiba Battery Co., Ltd.	Tokyo, Japan	Electronics	Patent: 27
33	Sumitomo Electric Industries Ltd.	Osaka, Japan	Electronics,Optical fiber,Optical fiber cable, ...[+2]	Patent: 26
34	Asahi Kasei Corp.	Tokyo, Japan	Chemical engineering,Petrochemical,Fertilizer, ...[+2]	Patent: 26
35	SANYO Electric Co., Ltd.	Osaka, Japan	Semiconductor,Computer hardware,Software, ...[+2]	Patent: 26
36	Kanebo Ltd.	Tokyo, Japan	Textile,Cosmetics,Food products, ...[+2]	Patent: 26
37	Sumitomo Electric	Osaka, Japan	Optical fiber,Electronics,Optical fiber cable	Patent: 26
38	Hisamitsu Pharmaceutical Co., Inc.	Saga, Japan	Salonpas,Medicine,Health care, ...[+2]	Patent: 25
39	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	Patent: 24
40	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	Patent: 22
41	Konica Minolta, Inc.	Tokyo, Japan	Medical imaging,Attractiveness,Product group, ...[+2]	Patent: 22
42	Mitsubishi Paper Mills Ltd.	Tokyo, Japan	Paperboard,Thermal paper,3D printing, ...[+2]	Patent: 22
43	Sanyo Chemical Industries, Ltd.	Kyoto, Japan	Chemical engineering,Polyurethane,Superabsorbent polymer, ...[+2]	Patent: 22
44	Toppan, Inc.	Tokyo, Japan	Publishing,Semiconductor,Electronics, ...[+2]	Patent: 21
45	NIPPON STEEL Stainless Steel Corp.	Tokyo, Japan	Mill,Metal,Mining engineering, ...[+1]	Patent: 21
46	Renaissance Energy Research Corp.	Osaka, Japan	Hydrogen production,Search engine,Unified communications, ...[+2]	Patent: 21
47	Evonik Degussa Japan Co., Ltd.	Tokyo, Japan		Patent: 21
48	DIC Corp.	Tokyo, Japan	Pigment,Chemical engineering,Synthetic resin, ...[+2]	Patent: 20
49	Mitsui Chemicals, Inc.	Tokyo, Japan	Petrochemical,Chemical engineering,Polypropylene, ...[+2]	Patent: 20
50	Kureha Corp.	Hokkaido, Japan	Chemical engineering,Polyvinylidene fluoride,Wallpaper, ...[+2]	Patent: 20
51	DIC Corporation		Pigment,Polymer,Epoxy, ...[+2]	Patent: 20
52	Ajinomoto Co., Inc.	Tokyo, Japan	Seasoning,Amino acid,Food processing, ...[+2]	Patent: 19
53	Unitika Ltd.	Osaka, Japan	Fiber,Textile (markup language),Polymer, ...[+2]	Patent: 19
54	Kowa Co., Ltd.	Aichi, Japan	Medicine,Medical equipment,Textile, ...[+2]	Patent: 18
55	Sakura Color Products Corp.	Osaka, Japan	Shopping mall	Patent: 18
56	NEC Corp.	Tokyo, Japan	Virtualization,Big data,Network security, ...[+2]	Patent: 17
57	Mitsubishi Gas Chemical Co., Inc.	Tokyo, Japan	Petroleum industry,Petrochemical,Engineering plastic, ...[+2]	Patent: 17
58	NOF Corp.	Tokyo, Japan	Organic peroxide,Chemical engineering,Fatty acid, ...[+2]	Patent: 17
59	FUJIFILM Wako Pure Chemical Corp.	Osaka, Japan	Diagnostic Reagent,Laboratory chemicals	Patent: 17
60	Murata Manufacturing Co. Ltd.	Kyoto, Japan	Semiconductor,Electronics,Electronic component, ...[+2]	Patent: 16
61	Sumitomo Seika Chemicals Co., Ltd.	Osaka, Japan	Polymer,Chemical engineering,Sanitary napkin, ...[+2]	Patent: 16
62	Pentel Co., Ltd.	Tokyo, Japan	Industrial robot,School supplies,Pencil (mathematics)	Patent: 16
63	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	Patent: 15
64	Dai Nippon Printing Co., Ltd.	Tokyo, Japan	Electronics,Publishing,Publication, ...[+2]	Patent: 15
65	Kaneka Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Polyvinyl chloride, ...[+2]	Patent: 15
66	TOKYO OHKA KOGYO CO., LTD.	Kanagawa, Japan	Photoresist,Semiconductor,Petrochemical, ...[+2]	Patent: 15
67	Nippon Steel Nisshin Co., Ltd.	Tokyo, Japan	Construction engineering	Patent: 15
68	The Nippon Synthetic Chemical Industry Co., Ltd.	Osaka, Japan	Chemical engineering,Adhesive,Acetic acid, ...[+2]	Patent: 15
69	JohnsonDiversey Co. Ltd.	Kumamoto, Japan	SOAP	Patent: 15
70	Dainippon Printing Co. Ltd.	Japan		Patent: 15
71	JSR Corp.	Tokyo, Japan	Synthetic rubber,Natural rubber,Elastomer, ...[+2]	Patent: 14
72	Taisho Pharmaceutical Co., Ltd.	Tokyo, Japan	Medicine,Self-medication,Drug, ...[+2]	Patent: 14
73	Takara Shuzo Co., Ltd.	Kyoto, Japan	Seasoning,Ethanol,Food industry, ...[+2]	Patent: 14
74	Nippon Zeon Co., Ltd.	Tokyo, Japan	Chemical engineering,Solid-state battery,Supercapacitor, ...[+1]	Patent: 14
75	Oji Holdings Corp.	Tokyo, Japan	Containerboard,Paperboard,Thermal paper, ...[+2]	Patent: 13
76	Kansai Paint Co., Ltd.	Osaka, Japan	Coating,Chemical engineering,Color scheme, ...[+2]	Patent: 13
77	AGC	Tokyo, Japan	Fluorine,Glazing,Chemical engineering, ...[+2]	Patent: 13
78	Asahi Fiber Glass Co., Ltd.	Tokyo, Japan	Glass wool,Thermal insulation,Fiber, ...[+2]	Patent: 13
79	TDK Corp.	Tokyo, Japan	Electronic component,Ceramic capacitor,Electronics, ...[+2]	Patent: 12
80	Terumo Corp.	Tokyo, Japan	Health care,Blood management,Syringe, ...[+2]	Patent: 12
81	Sumitomo Bakelite Co., Ltd.	Tokyo, Japan	Semiconductor,Materials science,Bakelite, ...[+2]	Patent: 12
82	Nippon Soda Co., Ltd.	Tokyo, Japan	Pesticide,Fungicide,Chemical engineering, ...[+2]	Patent: 12
83	PMC KK	Tokyo, Japan	Web design	Patent: 12
84	Idemitsu Petrochemical Co., Ltd.	Tokyo, Japan	Petrochemical,Chemical engineering,Butene, ...[+2]	Patent: 12
85	Bridgestone Corp.	Tokyo, Japan	Automotive engineering,sports equipment,Natural rubber, ...[+2]	Patent: 11
86	Nippon Telegraph & Telephone Corp.	Tokyo, Japan	Telecommunications,Cloud database,Data center, ...[+2]	Patent: 11
87	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	Patent: 11
88	Sumitomo Metal Mining Co., Ltd.	Tokyo, Japan	Nickel,Mining engineering,Natural resource management, ...[+2]	Patent: 11
89	LINTEC Corp.	Tokyo, Japan	Adhesive materials,Industrial engineering,Pressure sensitive, ...[+2]	Patent: 11
90	Otsuka Chemical Co., Ltd.	Tokyo, Japan	Chemical engineering,Foaming agent,Bromide	Patent: 11
91	Kobayashi Pharmaceutical Co., Ltd.	Osaka, Japan	Dental floss,Toothpaste,Sales management, ...[+2]	Patent: 10
92	KOSÉ Corp.	Tokyo, Japan	Cosmetics,Fast-moving consumer goods,Added value, ...[+2]	Patent: 10
93	DKS Co., Ltd.	Kyoto, Japan	Chemical engineering,Coating,Industrial engineering, ...[+2]	Patent: 10
94	Polyplastics Co., Ltd.	Tokyo, Japan	Engineering plastic,Plastics engineering,Polymer, ...[+2]	Patent: 10
95	Lead Chemical Co., Ltd.	Tokyo, Japan	Raw material,Medicine	Patent: 10
96	UBE Corp.	Tokyo, Japan	Synthetic rubber,Chemical engineering,Coal mining, ...[+2]	Patent: 9
97	Nippon Paper Industries Co., Ltd.	Tokyo, Japan	Paperboard,Forestry,Paper mill, ...[+2]	Patent: 9
98	Mitsubishi Pencil Co., Ltd.	Tokyo, Japan	Pencil (mathematics),Peripheral,School supplies, ...[+2]	Patent: 9
99	Fujimi, Inc.	Aichi, Japan	Abrasive,Industrial engineering,Diamond, ...[+2]	Patent: 9
100	Pola Chemical Industries, Inc.	Kanagawa, Japan	Chemical industry,Shopping mall,Cosmetics	Patent: 9