How many patents does
Tokyo Ohka Kogyo Company have?
patents
6,208
families
1,773
granted
2,146
applications
4,062
JP
1,912
US
1,348
KR
821
CN
437
EP
244
WO
139
RoW
1,307
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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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patent families
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Tokyo Ohka Kogyo Company
Top ten assignees appearing on patents
2009 - 2018
| tokyo ohka kogyo company | 4587 |
| riken corporation | 97 |
| ulvac | 35 |
| marubun corporation | 34 |
| toshiba kikai | 33 |
| daicel corporation | 22 |
| tazmo company | 15 |
| tokyo electron | 13 |
| kanagawa acad of sci & technol | 11 |
| promerus | 11 |
Tokyo Ohka Kogyo Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| negative electrode base member | 24 | 2006 |
| resist composition | 21 | 2003 |
| copolymer, resin composition, spacer for display panel, planarization film, thermosettin… 🛈 | 19 | 2007 |
| photosensitive composition and compound | 19 | 2014 |
| novel compound and method of producing the same, acid generator, resist composition and … 🛈 | 18 | 2007 |
| vinyl-group-containing fluorene compound | 17 | 2013 |
| resist composition, method of forming resist pattern, novel compound, and acid generator | 17 | 2007 |
| fluorene-type compound, photopolymerization initiator comprising said fluorene-type comp… 🛈 | 17 | 2012 |
| method for producing porous polyimide film, porous polyimide film and separator using sa… 🛈 | 15 | 2013 |
| semiconductor light-emitting element and production method | 15 | 2013 |