Inventor
Ryuji Nakagawa
Inventor
Tokyo, JP
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Lprimary
C08LCompositions of macromolecular compounds22%
C08CTreatment or chemical modification of rubbers13%
B60CVehicle tyres12%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds12%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients10%
Y10TTechnical subjects covered by former us classification9%
H01BCables4%
C09JAdhesives3%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys3%
B29DProducing particular articles from plastics or from substances in a plastic state1%
PatentTitleYear
10,995,200Kaolin clay for thermoplastic resin composition and thermoplastic resin composition20219,623,705'Method for producing modified conjugated diene polymer/copolymer, modified conjugated diene polymer/copolymer, and rubber composition and tire using the same'20179,393,838'Adhesive composition, adhesion method, and pneumatic tire'20169,045,003'Pneumatic tire'20159,029,462'Adhesive composition, adhesion method using the same, laminate and tire'20158,809,464'Polymers functionalized with halosilanes containing an amino group'20148,507,627'Aromatic vinyl compound-conjugated diene compound copolymer and method of producing the same as well as rubber composition and tire'20138,410,224'Method for producing modified conjugated diene based (co)polymer, modified conjugated diene based (co)polymer, and rubber composition'20138,258,332'Polymers functionalized with halosilanes containing an amino group'20128,232,352'Rubber composition and tire using the same'20128,143,517'Extra-fine copper alloy wire, extra-fine copper alloy twisted wire, extra-fine insulated wire, coaxial cable, multicore cable and manufacturing method thereof'20127,919,571'Polybutadiene as well as rubber composition using the same and tire'20117,879,952'Functionalized polymers'20117,732,534'Polymers functionalized with nitro compounds'20107,622,679'Signal transmission cable and multi-wire cable'20097,544,886'Extra-fine copper alloy wire, extra-fine copper alloy twisted wire, extra-fine insulated wire, coaxial cable, multicore cable and manufacturing method thereof'20096,939,910'Rubber composition'20056,730,743'Rubber composition'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2017Patents assigned to BRIDGESTONE CORP (14)· patent assignee history
2004–2017Based in Tokyo, JP· patent location history
2009Based in Naka-gun, JP· patent location history
2009Based in Tokai, JP· patent location history
2011–2015Based in Kodaira, JP· patent location history
2012–2017Patents assigned to NAKAGAWA RYUJI (10)· patent assignee history
2012–2017Patents assigned to MATSUSHITA JUNKO (5)· patent assignee history
2012–2017Patents assigned to OZAWA YOICHI (5)· patent assignee history
2012–2017Patents assigned to TANAKA KEN (4)· patent assignee history
2021Based in Amagasaki, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BRIDGESTONE CORP | 14 | 2004–2017 |
| NAKAGAWA RYUJIself | 10 | 2012–2017 |
| MATSUSHITA JUNKO | 5 | 2012–2017 |
| OZAWA YOICHI | 5 | 2012–2017 |
| TANAKA KEN | 4 | 2012–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 8 | 2004–2017 |
| Kodaira, JP | 6 | 2011–2015 |
| Amagasaki, JP | 1 | 2021 |
| Naka-gun, JP | 1 | 2009 |
| Tokai, JP | 1 | 2009 |