How many patents does
Chuo Hatsujo have?
patents
315
families
73
granted
58
applications
257
JP
86
US
67
WO
53
CN
47
EP
22
KR
4
RoW
36
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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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Chuo Hatsujo
Top ten assignees appearing on patents
2018
| chuo hatsujo | 5 |
| nicchu company | 1 |
Chuo Hatsujo
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| housing device | 16 | 2011 |
| spring characteristics correction method and spring characteristics correction device | 14 | 2010 |
| method for producing spring | 12 | 2010 |
| method for electrically heating spring, and device for same | 11 | 2010 |
| spring steel and spring having superior corrosion fatigue strength | 11 | 2009 |
| method for producing vehicle stabilizer | 10 | 2010 |
| solid stabilizer, steel material for solid stabilizer and method for producing solid sta… 🛈 | 9 | 2010 |
| method for manufacturing spring and device for heating by passage of electric current | 8 | 2010 |
| powder coating method | 7 | 2010 |
| coil-spring formation method and formation device | 7 | 2013 |