How many patents does
Keiwa have?
patents
515
families
113
granted
165
applications
350
JP
151
CN
91
KR
77
US
46
WO
17
EP
10
RoW
123
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The report contains ten-year analysis with the following sections
- patent filing analysis
- worldwide filing analysis
- patent family analysis
- application analysis
- granted analysis
- classification analysis
- citation analysis
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the following tables are just extracts from the report
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Keiwa
Top ten assignees appearing on patents
2009 - 2018
| keiwa | 366 |
| jiro corporate plan | 3 |
| mitsui chemicals | 2 |
| jipo corporate plan | 2 |
| jiroo corporate plan | 1 |
2009
| keiwa | 5 |
2018
| keiwa | 16 |
Keiwa
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| optical waveguide sheet, backlight unit, and portable terminal | 12 | 2014 |
| view angle-limiting sheet and flat panel display | 11 | 2012 |
| viewing angle limiting sheet and flat panel display | 11 | 2012 |
| viewing angle limiting sheet and flat panel display | 11 | 2012 |
| optical waveguide sheet, backlight unit, and portable terminal | 11 | 2014 |
| radioactivity protective sheet and method for manufacturing radioactivity protective she… 🛈 | 10 | 2011 |
| light guide film, backlight unit for ultrathin liquid crystal display device and mobile … 🛈 | 10 | 2013 |
| light diffusion sheet, and backlight unit for liquid crystal display device | 10 | 2013 |
| solar cell module back sheet, method for manufacturing solar cell module back sheet, and… 🛈 | 10 | 2012 |
| sheet for image display device, layered product for image display device and image displ… 🛈 | 10 | 2014 |