Top 100 Key Players companies in Hygrometer by Most Patent Citation in the world in 2019 – Discovery

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The Hygrometer top 100 is Discovery PatSnap’ annual ranking of the top 100 Most Patent Citation Hygrometer Key Players in the world. 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.

A hygrometer is an instrument used to measure the amount of humidity and water vapour in the atmosphere, in soil, or in confined spaces. Humidity measurement instruments usually rely on measurements of some other quantity such as temperature, pressure, mass, a mechanical or electrical change in a substance as moisture is absorbed. By calibration and calculation, these measured quantities can lead to a measurement of humidity. Modern electronic devices use temperature of condensation (called the dew point), or changes in electrical capacitance or resistance to measure humidity differences. The first crude hygrometer was invented by the Italian Renaissance polymath Leonardo da Vinci in 1480 and a more modern version was created by Swiss polymath Johann Heinrich Lambert in 1755. Later in the year 1783, Swiss physicist and Geologist, Horace Bénédict de Saussure invented the first hygrometer using human hair to measure humidity.

1	Hitachi Ltd.	Tokyo, Japan	Elevator,Electrical equipment,Electric motor, ...[+2]	patent citation: 196
2	Mitsubishi Electric Engineering Co., Ltd.	Tokyo, Japan		patent citation: 132
3	Azbil Corp.	Tokyo, Japan	Building automation,Software,Electronics, ...[+2]	patent citation: 114
4	TOSHIBA Corp.	Tokyo, Japan	Semiconductor,Computer hardware,Electronics, ...[+2]	patent citation: 54
5	Japan Energy Corp.	Tokyo, Japan	Petroleum,Petroleum industry,Liquefied petroleum gas, ...[+2]	patent citation: 54
6	E.G.&G., Inc.	United States	Financial plan,National security,Backscatter, ...[+2]	patent citation: 51
7	Keybank National Association	Ohio, United States		patent citation: 51
8	Beckman Instruments, Inc.	Indiana, United States	Medicine,Guidance system	patent citation: 48
9	TDK Corp.	Tokyo, Japan	Electronic component,Ceramic capacitor,Electronics, ...[+2]	patent citation: 47
10	Michell Instruments Ltd.	Massachusetts, United States	Kerosene,Dew point,Relative humidity, ...[+2]	patent citation: 41
11	Siemens AG	Bayern, Germany	Power transmission,Electronics,Turbine, ...[+2]	patent citation: 40
12	Siemens SA	Madrid, Spain	Scientific Control,Telecommunications,Turbine, ...[+1]	patent citation: 40
13	Gww Partners LLC	United States		patent citation: 40
14	Honeywell International, Inc.	North Carolina, United States	Aerospace,Electronics,Market research, ...[+2]	patent citation: 37
15	Espec Corp.	Osaka, Japan	Climate system,Computer hardware,Electronics, ...[+2]	patent citation: 36
16	Honda Motor Co., Ltd.	Tokyo, Japan	Automotive engineering,Manufacturing engineering,Sport utility vehicle, ...[+2]	patent citation: 32
17	NKK Corp.	Tokyo, Japan	Natural resource management,Mining engineering	patent citation: 30
18	General Eastern Instruments	WA, US	Control equipment,Computer hardware,Medical equipment, ...[+1]	patent citation: 29
19	General Electric Co.	Massachusetts, United States	Energy management,Turbine,Electronics, ...[+2]	patent citation: 28
20	Sony Group Corp.	Tokyo, Japan	Computer hardware,Software,Music, ...[+2]	patent citation: 28
21	Campbell Scientific, Inc.	Utah, United States	Computer hardware,Data acquisition,Electronics, ...[+2]	patent citation: 28
22	Huadian Electric Power Research Institute Co., Ltd.	Zhejiang Sheng, China	Hydropower,Energy technology	patent citation: 28
23	Samsung Electronics Co., Ltd.	South Korea	Computer hardware,Semiconductor,Software, ...[+2]	patent citation: 25
24	Ophir Corp.	Colorado, United States	Laser,Automotive safety,Aerospace, ...[+2]	patent citation: 25
25	Elektrowatt AG	ZH, CH	Asset management,Impact investing	patent citation: 24
26	State Grid Corp. of China	Beijing Shi, China	Electric vehicle,Power grid,Total asset, ...[+2]	patent citation: 23
27	Canon, Inc.	Tokyo, Japan	Computer hardware,Software,Computer vision, ...[+2]	patent citation: 22
28	Toyota Central R&D Labs, Inc.	Aichi, Japan	Semiconductor,Power semiconductor device,System on a chip, ...[+2]	patent citation: 22
29	Kawasaki Steel Corp.	Japan		patent citation: 22
30	Kawasaki Steel			patent citation: 22
31	Chino Corp.	Tokyo, Japan	Pyrometer,Control equipment,Instrumentation, ...[+2]	patent citation: 21
32	Sumitomo Metal Industries Ltd.	Osaka, Japan	Metal,Semiconductor,Casting, ...[+2]	patent citation: 20
33	Fuji Electronics Co., Ltd.	Tokyo, Japan	Semiconductor,Microcomputer,Electronic component, ...[+2]	patent citation: 20
34	Fuji Electric FA Components & SYstems Co., Ltd.	Tokyo, Japan	Semiconductor,Industrial engineering,Smart grid, ...[+2]	patent citation: 20
35	ELITechGroup, Inc. (Utah)	UT, US	Water potential,Computer hardware,Electronics	patent citation: 20
36	Panasonic Holdings Corp.	Osaka, Japan	Semiconductor,Industrial engineering,Electronics, ...[+2]	patent citation: 19
37	Matsushita Electronics Corp.	Osaka, Japan	Electronics,Computer hardware,DVD player, ...[+2]	patent citation: 19
38	Mitsubishi Kogyo KK	Japan		patent citation: 19
39	Hitachi Plant Technologies Ltd.	Tokyo, Japan	Water treatment,Environmental consulting,Microfiltration, ...[+2]	patent citation: 17
40	Zhejiang Qinye Construction Engineering Group Co., Ltd.	China		patent citation: 17
41	Ebara Shinwa Ltd.	Japan		patent citation: 17
42	Seiko Epson Corp.	Nagano, Japan	Wearable technology,Projector,Electronics, ...[+2]	patent citation: 16
43	Spectral Sciences, Inc.	Massachusetts, United States	Optical radiation,Radiative transfer,Spectroscopy, ...[+2]	patent citation: 16
44	Meidensha Corp.	Tokyo, Japan	Electrical equipment,Social infrastructure,Electronics, ...[+2]	patent citation: 15
45	Hitachi Kokusai Electric, Inc.	Saga, Japan	Semiconductor,Electronics,Thin film, ...[+2]	patent citation: 15
46	JX Nippon Mining & Metals Corp.	Tokyo, Japan	Non-ferrous metal,Cathode material,Mining engineering, ...[+2]	patent citation: 15
47	Air Products & Chemicals, Inc.	Pennsylvania, United States	Industrial gas,Chemical engineering,Helium, ...[+2]	patent citation: 14
48	DAIKIN INDUSTRIES Ltd.	Osaka, Japan	Air conditioning,Refrigeration,Mechanical engineering, ...[+2]	patent citation: 13
49	Sharp Corp.	Osaka, Japan	Computer hardware,Electronics,Telecommunications, ...[+2]	patent citation: 13
50	Chugai Pharmaceutical Co., Ltd.	Tokyo, Japan	Drug,Clinical trial,Health care, ...[+2]	patent citation: 13
51	Sunbeam Products, Inc.	United States	Air purifier,Air pollution,Indoor air quality, ...[+2]	patent citation: 13
52	The Holmes Group, Inc.	Massachusetts, United States	Air purifier,Electronics,Humidifiers, ...[+2]	patent citation: 13
53	Daikin Airconditioning France SAS	Osaka, Japan	Industrial engineering,Fluorochemical industry,Air conditioning, ...[+1]	patent citation: 13
54	Hitachi High-Tech Science Corp.	Chiba, Japan	Computer hardware,Electronics,Nanometrology, ...[+2]	patent citation: 13
55	General Time Corp.	GA, US	Alarm clock,Medical equipment,Barometer	patent citation: 13
56	Spare IPG 20 Ltd.	DR, GB		patent citation: 13
57	NIPPON STEEL Stainless Steel Corp.	Tokyo, Japan	Mill,Metal,Mining engineering, ...[+1]	patent citation: 12
58	Southwest Sciences, Inc.	New Mexico, United States	Magnetometer,Atmospheric chemistry,Avionics, ...[+2]	patent citation: 12
59	National Research Development Corp.	United Kingdom		patent citation: 12
60	Nitto Denko Corp.	Osaka, Japan	Semiconductor,Product design,Adhesive, ...[+2]	patent citation: 11
61	Tomoegawa Co., Ltd.	Tokyo, Japan	Materials processing,Industrial engineering,Nonwoven fabric, ...[+2]	patent citation: 11
62	Thales Group	Île-de-France, France	Aerospace,Public transport,Security market, ...[+2]	patent citation: 11
63	Nihon Denso KK	Saitama, Japan	Manufacturing engineering,Mechanical engineering	patent citation: 11
64	Thales International SAS	Île-de-France, France	Aerospace,Information system,National security, ...[+1]	patent citation: 11
65	BBC Brown Boveri Ltd.	Switzerland		patent citation: 10
66	Guangzhou Aosong Electronics Co. Ltd.	China	Semiconductor,Capacitor,Electron, ...[+2]	patent citation: 10
67	MEECO, Inc.	PA, US	Computer hardware,Electronics,Semiconductor, ...[+2]	patent citation: 10
68	Ricoh Co., Ltd.	Tokyo, Japan	Digital media,Data visualization,Thermal paper, ...[+2]	patent citation: 9
69	FANUC Corp.	Yamanashi, Japan	Robotics,Robot,Automation, ...[+2]	patent citation: 9
70	Carl Schenck AG	Hessen, Germany	Diagnostic system,Automation	patent citation: 9
71	LI-COR, Inc.	Nebraska, United States	Reagent,Molecular diagnostics,Health care, ...[+2]	patent citation: 9
72	A. O. Smith Corp.	Wisconsin, United States	Water treatment,Renewable energy,Efficient energy use, ...[+2]	patent citation: 8
73	Sumitomo Pharma Co., Ltd.	Osaka, Japan	Medicine,Health care,Clinical trial, ...[+2]	patent citation: 8
74	Chongqing Fuling Zhacai Group Co., Ltd.	Chongqing Shi, China	Food processing,Food industry,Seasoning, ...[+2]	patent citation: 8
75	The Dow Chemical Co.	Michigan, United States	Coating,Agriculture,Chemical engineering, ...[+2]	patent citation: 8
76	Fuji Electric Systems Co., Ltd.	Tokyo, Japan	Automation,Manufacturing engineering,Industrial engineering, ...[+2]	patent citation: 8
77	Sumitomo Pharmaceuticals Co., Ltd.	Osaka, Japan	Botanical drug,Herb	patent citation: 8
78	Nippon Telegraph & Telephone Corp.	Tokyo, Japan	Telecommunications,Cloud database,Data center, ...[+2]	patent citation: 7
79	Iseki & Co., Ltd.	Tokyo, Japan	Combine harvester,Cutlery,Manufacturing engineering, ...[+2]	patent citation: 7
80	China Ordnance Industry Grp Air Ammunition Institute Co., Ltd.	Heilongjiang Sheng, China	Mechanical engineering,Manufacturing engineering	patent citation: 7
81	Shanghai Research Institute of Chemical Industry Co. Ltd.	China	Biology,Chemistry,Oceanography, ...[+2]	patent citation: 7
82	Hazamagumi KK	Japan		patent citation: 7
83	Shanghai Nuclear Engineering Research & Design Institute	Shanghai Shi, China	Nuclear engineering	patent citation: 7
84	JGC Plantech Co., Ltd.	AI, JP		patent citation: 7
85	Kajima Corp.	Tokyo, Japan	Civil engineering,Construction engineering,Real estate development, ...[+2]	patent citation: 6
86	TAKUMA CO., LTD.	Hyogo, Japan	Manufacturing engineering,Agricultural waste,Boiler (power generation), ...[+2]	patent citation: 6
87	Messer Group GmbH	Hessen, Germany	Industrial gas,Nitrogen,Argon, ...[+2]	patent citation: 6
88	Kanebo Ltd.	Tokyo, Japan	Textile,Cosmetics,Food products, ...[+2]	patent citation: 6
89	Fujita Corp.	Tokyo, Japan	Land utilization,Demolition,Construction engineering, ...[+2]	patent citation: 6
90	Vapor	New York, United States	Electronic cigarette,Cannabis,Product design, ...[+2]	patent citation: 6
91	China Sinogy Electric Engineering Co., Ltd.	Shanghai Shi, China	Construction engineering,Project management	patent citation: 6
92	STARTUP Ingenera SA	Switzerland	Deep learning,Farming industry,Livestock	patent citation: 6
93	Ohbayashi Corp.	Japan	Construction engineering	patent citation: 6
94	Powerchina Huadong Engineering Corp. Ltd.	Zhejiang Sheng, China	Industrial engineering,Offshore wind power,Wind power, ...[+1]	patent citation: 6
95	LG Electronics, Inc.	South Korea	Computer hardware,Electronics,Telecommunications, ...[+2]	patent citation: 5
96	Ebara Corp.	Tokyo, Japan	Vacuum pump,Manufacturing engineering,Turbine, ...[+2]	patent citation: 5
97	Sumitomo Metal Mining Co., Ltd.	Tokyo, Japan	Nickel,Mining engineering,Natural resource management, ...[+2]	patent citation: 5
98	ShinMaywa Industries, Ltd.	Hyogo, Japan	Aerospace,Jet bridge,National security, ...[+2]	patent citation: 5
99	Nohmi Bosai Ltd.	Tokyo, Japan	Fire protection,Automation,Manufacturing engineering, ...[+2]	patent citation: 5
100	Nordica SpA	Veneto, Italy		patent citation: 5