Inventor
Ryuji Aoki
Inventor
Miyagi, JP
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Mprimary
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof28%
C07CAcyclic or carbocyclic compounds22%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry17%
B41JTypewriters11%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables6%
F04BPositive-displacement machines for liquids6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
10,167,864Fuel pump20198,246,005'Electromagnetic fuel injection valve and method of manufacturing the same'20127,753,292'Electromagnetic field injection valve'20107,637,442'Fuel injection valve'20097,530,508'Fuel injection valve'20097,384,117'Ink jet printer'20087,086,730'Ink-jet printer and star roller used therein'20065,329,026'Process for preparation of 2-substituted 1,4-naphthoquinone'19944,558,028'Catalyst for production of methacrylic acid'19854,511,671'Catalyst for manufacturing methacrolein'19854,438,217'Catalyst for oxidation of propylene'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1994Patents assigned to NIPPON CATALYTIC CHEM IND (4)· patent assignee history
1984–1985Based in Himeji, JP· patent location history
1994Based in Hyogo, JP· patent location history
2006–2008Patents assigned to FUNAI ELECTRIC CO (2)· patent assignee history
2006–2008Based in Daito, JP· patent location history
2009–2019Patents assigned to KEIHIN CORP (5)· patent assignee history
2009–2012Based in Miyagi, JP· patent location history
2012Patents assigned to AOKI RYUJI (1)· patent assignee history
2012Patents assigned to SAKAI TOSHIKAZU (1)· patent assignee history
2019Based in Shioya-gun, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| KEIHIN CORP | 5 | 2009–2019 |
| NIPPON CATALYTIC CHEM IND | 4 | 1984–1994 |
| FUNAI ELECTRIC CO | 2 | 2006–2008 |
| AOKI RYUJIself | 1 | 2012 |
| SAKAI TOSHIKAZU | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Miyagi, JP | 4 | 2009–2012 |
| Himeji, JP | 3 | 1984–1985 |
| Daito, JP | 2 | 2006–2008 |
| Shioya-gun, JP | 1 | 2019 |
| Hyogo, JP | 1 | 1994 |