Inventor
Toshihiro Hirai
Inventor
Ueda, JP
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere8%
C07CAcyclic or carbocyclic compounds6%
H10NElectric solid-state devices not otherwise provided for6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
F01MLubricating of machines or engines in general4%
G02BOptical elements, systems or apparatus4%
A61KPreparations for medical, dental or toiletry purposes2%
A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents2%
B01DSeparation2%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%
PatentTitleYear
10,994,393Rotary impact tool202110,957,556Nonvolatile semiconductor memory device and method of manufacturing the same20218,354,774'Dielectric material for polymeric actuator, and polymeric actuator using the same'20138,169,715'Variable focal length lens, and focal length adjusting device, and imaging apparatus that use the same'20127,933,081'Focusing device and imaging device'20117,196,240'Method and equipment for making polychlorobiphenyl nontoxic'20077,109,643'Actuator'20066,789,019'Clinical-examination-numerical-data-processing system and recording medium for diagnostic program using the system'20046,404,072'Automatic stop/restart device of vehicle engine'20026,262,374'Shielded cable connecting structure'20015,977,685'Polyurethane elastomer actuator'19995,552,389'Suppressory compositions against hepatic metastases of tumors'19965,211,879'Ester compounds and liquid crystal compositions containing the same'19935,137,653'Alkanoyl ester compounds and their intermediates and method of producing the same'19925,098,602'Novel halogen-containing ester compounds, and their intermediates, and method of producing the same as well as liquid crystal compositions containing the same and light switching elements'19925,058,545'Oil pan for internal combustion engine'19915,038,890'Oil pan structure for internal combustion engine'19914,970,023'Biphenyl compounds, method of producing the same as well as liquid crystal compositions and light switch elements each containing the same'19904,131,528'Process for the mass production of ozone'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1993Patents assigned to NIPPON MINING CO (4)· patent assignee history
1990–1993Based in Toda, JP· patent location history
1991–2002Patents assigned to NISSAN MOTOR (4)· patent assignee history
1991–2002Based in Yokohama, JP· patent location history
1999–2013Patents assigned to HIRAI TOSHIHIRO (3)· patent assignee history
1999–2013Based in Ueda, JP· patent location history
2011–2012Patents assigned to SEIKO PRECISION KK (2)· patent assignee history
2012–2013Patents assigned to UNIV SHINSHU (2)· patent assignee history
2021Based in Hitachinaka, JP· patent location history
2021Based in Yokkaichi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON MINING CO | 4 | 1990–1993 |
| NISSAN MOTOR | 4 | 1991–2002 |
| HIRAI TOSHIHIROself | 3 | 1999–2013 |
| SEIKO PRECISION KK | 2 | 2011–2012 |
| UNIV SHINSHU | 2 | 2012–2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ueda, JP | 4 | 1999–2013 |
| Yokohama, JP | 3 | 1991–2002 |
| Toda, JP | 3 | 1990–1993 |
| Hitachinaka, JP | 1 | 2021 |
| Yokkaichi, JP | 1 | 2021 |