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Top 10 Key Players companies in Drip irrigation
by Most Patent Citation in the Japan in 2021

The Drip irrigation top 10 is Discovery PatSnap’ annual ranking of the top 10 Most Patent Citation Drip irrigation 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.
Drip irrigation is a type of micro-irrigation system that has the potential to save water and nutrients by allowing water to drip slowly to the roots of plants, either from above the soil surface or buried below the surface. The goal is to place water directly into the root zone and minimize evaporation. Drip irrigation systems distribute water through a network of valves, pipes, tubing, and emitters. Depending on how well designed, installed, maintained, and operated it is, a drip irrigation system can be more efficient than other types of irrigation systems, such as surface irrigation or sprinkler irrigation.
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Company Name
Region
Tech Topics
Total
1
Enplas Corp.
Semiconductor,Integrated circuit,Optics,
...[+2]
patent citation: 369
2
Nidek Co., Ltd.
Surgical lasers,Medical equipment,Medicine,
...[+2]
patent citation: 87
3
Seiwa, Inc.
Plastic recycling,Polyethylene naphthalate,Polyester,
...[+1]
patent citation: 20
4
Minoru Sangyo KK
patent citation: 10
5
Ebara Corp.
Vacuum pump,Manufacturing engineering,Turbine,
...[+2]
patent citation: 6
6
Sumitomo Electric Industries Ltd.
Electronics,Optical fiber,Optical fiber cable,
...[+2]
patent citation: 3
7
Sekisui Chemical Co., Ltd.
Synthetic rubber,Industrial engineering,Polyvinyl chloride,
...[+2]
patent citation: 3
8
Mitsubishi Plastics, Inc.
Bottle,Chemical engineering,Plastic film,
...[+2]
patent citation: 3
9
Sumitomo Electric
Optical fiber,Electronics,Optical fiber cable
patent citation: 3
10
Iseki & Co., Ltd.
Combine harvester,Cutlery,Manufacturing engineering,
...[+2]
patent citation: 2
Page generation time: Jun 25 2025