Inventor
Takeshi Omatsu
Inventor
Kyotanabe, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Dprimary
C09DCoating compositions, e.g. paints, varnishes or lacquers37%
B43KImplements for writing or drawing23%
Y10TTechnical subjects covered by former us classification17%
G01NInvestigating or analysing materials by determining their chemical or physical properties10%
Y02ATechnologies for adaptation to climate change7%
A61LMethods or apparatus for sterilising materials or objects in general3%
B43LArticles for writing or drawing upon3%
PatentTitleYear
8,123,845'Water base dual color ink composition and writing utensil using the same'20128,080,098'Water-based ink composition'20117,914,222'Tip unit for liquid applicator, method for producing the same, and liquid applicator having the tip unit'20117,905,671'Ink backflow preventive for water-based ball-point pens'20117,776,941'Oil-based ink composition for writing instruments'20107,721,402'Method of producing applicator tip'20107,637,680'Coating tool'20097,541,394'Water base pigment ink composition for inner lead type writing instrument'20097,538,148'Aqueous ink composition'20096,659,036'Plasma sterilization indicator'20036,655,867'Oily ink for writing instrument'20036,406,204'Oily ink for writing instrument'20026,336,964'Ozone indicator and ozone sensor ink'20026,117,685'Ozone indicator and ozone detecting ink'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2012Patents assigned to SAKURA COLOR PROD CORP (14)· patent assignee history
2000–2002Based in Kyoto, JP· patent location history
2002–2011Based in Kyotanabe, JP· patent location history
2009–2011Based in Osaka, JP· patent location history
2011–2012Patents assigned to OMATSU TAKESHI (2)· patent assignee history
2011Patents assigned to FUJITA KOZABURO (1)· patent assignee history
2011Patents assigned to INOUE HIROSHI (1)· patent assignee history
2011Patents assigned to KURIHARA NORIMASA (1)· patent assignee history
2012Based in Kyoutanabe, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SAKURA COLOR PROD CORP | 14 | 2000–2012 |
| OMATSU TAKESHIself | 2 | 2011–2012 |
| FUJITA KOZABURO | 1 | 2011 |
| INOUE HIROSHI | 1 | 2011 |
| KURIHARA NORIMASA | 1 | 2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kyotanabe, JP | 6 | 2002–2011 |
| Osaka, JP | 5 | 2009–2011 |
| Kyoto, JP | 2 | 2000–2002 |
| Kyoutanabe, JP | 1 | 2012 |