Inventor
Eiji Shirai
Inventor
Wakayama, JP
Overview
Patents· 45 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography46%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds16%
F01LCyclically operating valves for machines or engines7%
C08LCompositions of macromolecular compounds6%
F16HGearing4%
E01CConstruction of, or surfaces for, roads, sports grounds, or the like3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry1%
B41MPrinting, duplicating, marking, or copying processes1%
C04BLime, magnesia1%
PatentTitleYear
10,934,434Asphalt composition for road pavement202110,782,624Binder resin composition for electrostatic image developing toners202010,662,110Asphalt composition for paving roads202010,394,149Binder resin composition for electrostatic image developing toners20199,291,926'Method for producing toner for electrostatic image development'20169,017,912'Method for producing toner'20158,802,342'Crystalline resins for toners'20148,722,297'Resin binders for toners'20148,652,746'Manufacturing method for polyester particle dispersion liquid'20148,632,936'Process for production of electrophotographic toner'20148,460,847'Toners for electrophotography'20138,389,189'Resin binders for toners'20138,318,634'Thermal transfer image-receiving sheets'20128,288,499'Polyester for toner'20128,221,949'Toner'20128,071,268'Electrophotographic toner'20117,842,448'Method of forming fixed images'20107,820,354'Method for producing toner'20107,718,754'Promoter for polycondensation reaction'20107,528,218'Polyester for toner'20097,390,605'Resin binder for toner'20087,387,863'Crystalline polyester for toner'20087,385,002'Process for preparing resin binder for toner'20087,351,510'Toner for electrophotography'20087,208,563'Crystalline polyester'20077,205,357'Polyester resin composition for toner'20077,041,422'Resin binder for toner'20066,998,212'Crystalline polyester'20066,984,601'Preparing condensation polymerization resin with catalyst for toner'20066,936,393'Catalyst for preparing polyester for toner'20056,890,695'Toner for electrophotography'20056,864,030'Toner'20056,723,822'Crystalline polyester'20046,538,591'Signal transfer apparatus, and imaging apparatus and radiation image pick-up system using it'20036,350,551'Yellow toner'20026,183,928'Toner for full color development'20016,106,986'Color toner'20005,488,934'Valve gear device'19965,361,734'Valve control device for an engine'19945,343,833'Valve gear device for internal combustion engines'19945,104,359'Tensioner with reduced rattling'19924,925,436'Tensioner'19904,858,572'Device for adjusting an angular phase difference between two elements'19894,790,796'Free piston type auto-tensioner'19884,662,325'Self-contained hydraulic valve lifter'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1996Patents assigned to AISIN SEIKI (8)· patent assignee history
1987–1992Based in Okazaki, JP· patent location history
1994–1996Based in Nukata-gun, JP· patent location history
1994Based in Aichi, JP· patent location history
2000–2021Patents assigned to KAO CORP (36)· patent assignee history
2000–2021Based in Wakayama, JP· patent location history
2003Based in Tokyo, JP· patent location history
2011–2015Patents assigned to SHIRAI EIJI (11)· patent assignee history
2013–2014Patents assigned to MURATA SHOICHI (4)· patent assignee history
2013–2014Patents assigned to MIZUHATA HIROSHI (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KAO CORP | 36 | 2000–2021 |
| SHIRAI EIJIself | 11 | 2011–2015 |
| AISIN SEIKI | 8 | 1987–1996 |
| MURATA SHOICHI | 4 | 2013–2014 |
| MIZUHATA HIROSHI | 3 | 2013–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wakayama, JP | 36 | 2000–2021 |
| Okazaki, JP | 5 | 1987–1992 |
| Nukata-gun, JP | 2 | 1994–1996 |
| Tokyo, JP | 1 | 2003 |
| Aichi, JP | 1 | 1994 |