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Top 50 Key Players companies in Housekeeping
by Most Patent Citation in the Japan in 2022

The Housekeeping top 50 is Discovery PatSnap’ annual ranking of the top 50 Most Patent Citation Housekeeping Key Players in the Japan. Discovery has identified the top key players, startups & unicorns, fast-growings, news entrants in 2022, ranking from differnt perspectives, including patent filing intensity, academic research capability, news media heat. The company list is generated from various data types.
Housekeeping refers to the management of duties and chores involved in the running of a household, such as cleaning, cooking, home maintenance, shopping, laundry and bill payment. These tasks may be performed by members of the household, or by other persons hired for the purpose. The term is also used to refer to the money allocated for such use. By extension, an office or organization, as well as the maintenance of computer storage systems.

Key Players

Fast-growings

Startups & Unicorns

New Entrants

Ranking Year:

2022

2021

2020

2019

2018

Region:

Global

China

Japan

United States

United Kingdom

Canada

South Korea

Germany

Ranking:

Most Patent Filings

Highest Patent Value

Most Patent Citation

Most Market Reports

Most News Heat

#
Company Name
Region
Tech Topics
Total
1
Advantest Corp.
Tokyo, Japan
Semiconductor,Mechanical engineering,Product design,
...[+2]
patent citation: 117
2
Seiko Epson Corp.
Nagano, Japan
Wearable technology,Projector,Electronics,
...[+2]
patent citation: 105
3
Unisis Corp.
Japan
Medical equipment,Medicine,Biopsy
patent citation: 101
4
Panasonic Holdings Corp.
Osaka, Japan
Semiconductor,Industrial engineering,Electronics,
...[+2]
patent citation: 66
5
Matsushita Electronics Corp.
Osaka, Japan
Electronics,Computer hardware,DVD player,
...[+2]
patent citation: 66
6
NEC Corp.
Tokyo, Japan
Virtualization,Big data,Network security,
...[+2]
patent citation: 48
7
Hitachi Ltd.
Tokyo, Japan
Elevator,Electrical equipment,Electric motor,
...[+2]
patent citation: 43
8
Mercury System
Chiba, Japan
Software,Real-time computing
patent citation: 43
9
Taiho Pharmaceutical Co., Ltd.
Tokyo, Japan
Oncology,Medicine,Health care,
...[+2]
patent citation: 39
10
Fujitsu Ltd.
Tokyo, Japan
Cloud computing,Enterprise software,Information technology management,
...[+2]
patent citation: 35
11
NTT DoCoMo, Inc.
Tokyo, Japan
Telecommunications,Wireless,Mobile device,
...[+2]
patent citation: 32
12
Nippon Telegraph & Telephone Corp.
Tokyo, Japan
Telecommunications,Cloud database,Data center,
...[+2]
patent citation: 31
13
Casio Computer Co., Ltd.
Tokyo, Japan
Projector,Electronics,Digital camera,
...[+2]
patent citation: 25
14
Casio Electronics Manufacturing Co., Ltd.
Saitama, Japan
patent citation: 25
15
Canon, Inc.
Tokyo, Japan
Computer hardware,Software,Computer vision,
...[+2]
patent citation: 24
16
Sony Group Corp.
Tokyo, Japan
Computer hardware,Software,Music,
...[+2]
patent citation: 22
17
TOSHIBA Corp.
Tokyo, Japan
Semiconductor,Computer hardware,Electronics,
...[+2]
patent citation: 20
18
Honda Motor Co., Ltd.
Tokyo, Japan
Automotive engineering,Manufacturing engineering,Sport utility vehicle,
...[+2]
patent citation: 18
19
Oki Electric Industry Co., Ltd.
Tokyo, Japan
Telecommunications,Call centre,Software,
...[+2]
patent citation: 18
20
SANYO Electric Co., Ltd.
Osaka, Japan
Semiconductor,Computer hardware,Software,
...[+2]
patent citation: 16
21
Hitachi Kokusai Electric, Inc.
Saga, Japan
Semiconductor,Electronics,Thin film,
...[+2]
patent citation: 16
22
Hochiki Corp.
Tokyo, Japan
Smoke,Fire detection,Fire protection,
...[+2]
patent citation: 14
23
KIOXIA Corp.
Tokyo, Japan
Computer hardware,Solid-state,Flash memory,
...[+2]
patent citation: 14
24
Mitsubishi Electric Information Systems Corp.
Tokyo, Japan
Information system,Information technology consulting,Systems design
patent citation: 14
25
NGK Insulators, Ltd.
Aichi, Japan
Beryllium copper,Industrial engineering,Pottery,
...[+2]
patent citation: 13
26
Ricoh Co., Ltd.
Tokyo, Japan
Digital media,Data visualization,Thermal paper,
...[+2]
patent citation: 11
27
NTT Communications Corp.
Tokyo, Japan
Telecommunications,Information technology consulting,IPv6,
...[+2]
patent citation: 11
28
Nippon Telegraph & Telephone East Corp.
Tokyo, Japan
Telecommunications,Cloud database,Perfection,
...[+1]
patent citation: 11
29
Nomura Research Institute Ltd.
Tokyo, Japan
Systems design,Phosphatase,Kinase,
...[+2]
patent citation: 10
30
Fujitsu FIP Corp.
Tokyo, Japan
Information technology consulting,Systems design
patent citation: 10
31
Toray Industries, Inc.
Tokyo, Japan
Fiber,Textile,Textile (markup language),
...[+2]
patent citation: 9
32
Misawa Homes Co., Ltd.
Tokyo, Japan
Land utilization,Real estate development,Residential land
patent citation: 9
33
NEC Soft Ltd.
Tokyo, Japan
Information technology consulting,Systems design,Software development
patent citation: 8
34
Daiwa House Industry Co., Ltd.
Osaka, Japan
Residence,Association (object-oriented programming),Social network
patent citation: 7
35
Sekisui House, Ltd.
Osaka, Japan
Real estate development,Residential land,Urban area,
...[+2]
patent citation: 7
36
NTT DATA Corp.
Tokyo, Japan
Software,Social infrastructure,Information technology consulting,
...[+2]
patent citation: 7
37
Giken Shoji International Co. Ltd.
Tokyo, Japan
Digital marketing
patent citation: 6
38
Sharp Corp.
Osaka, Japan
Computer hardware,Electronics,Telecommunications,
...[+2]
patent citation: 5
39
Takara Co., Ltd.
Tokyo, Japan
patent citation: 5
40
Toyota Housing Corp.
Aichi, Japan
Real estate development
patent citation: 5
41
Dai Nippon Printing Co., Ltd.
Tokyo, Japan
Electronics,Publishing,Publication,
...[+2]
patent citation: 4
42
Toshiba Tec Corp.
Tokyo, Japan
Computer hardware,Peripheral,Electronics,
...[+2]
patent citation: 4
43
Nippon Avionics Co., Ltd.
Tokyo, Japan
Avionics,Data processing system,Aerospace,
...[+2]
patent citation: 4
44
Kobayashi Co. Ltd.
Tokushima, Japan
Synthetic resin,Synthetic rubber,Chemical engineering
patent citation: 4
45
Dainippon Printing Co. Ltd.
Japan
patent citation: 4
46
Daiken Corp.
Toyama, Japan
Building material,Forestry,Composite material,
...[+2]
patent citation: 3
47
Makino Milling Machine Co., Ltd.
Tokyo, Japan
Machining,Manufacturing engineering,Discharge,
...[+2]
patent citation: 3
48
Hitachi Systems, Ltd.
Tokyo, Japan
Telecommunications,Information technology management,Software,
...[+2]
patent citation: 3
49
Toho Sheet & Frame Co. Ltd.
Tokyo, Japan
Mining engineering,Natural resource management
patent citation: 3
50
OMRON Corp.
Kyoto, Japan
Automation,Electronics,Health care,
...[+2]
patent citation: 2

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