Inventor
Masayuki Miyashita
Inventor
Osaka, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Pprimary
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1035%
C09KMaterials for miscellaneous applications, not provided for elsewhere15%
C02FTreatment of water, waste water, sewage, or sludge10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
C01BNon-metallic elements5%
C03CChemical composition of glasses, glazes or vitreous enamels5%
C23CCoating metallic material5%
H01LSemiconductor devices5%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h105%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
8,974,685'Fine-processing agent and fine-processing method'20158,501,138'Production method of high purity silver tetrafluoroborate'20138,066,898'Surface treatment solution for the fine surface processing of a glass substrate containing multiple ingredients'20117,994,063'Method for manufacturing semiconductor device and method for cleaning semiconductor substrate'20116,905,606'Method of removing calcium from water containing calcium hydrogen carbonate in high concentration'20056,821,452'Etchant'20046,797,194'Surface treating for micromachining and method for surface treatment'20046,699,603'Stainless steel having passive fluoride film formed thereon and equipment manufactured therefrom'20046,666,973'Method for fixing fluorine and phosphorus in waste water containing fluorophosphoric acid-derived compound to remove them'20036,585,910'Etchant'20036,027,571'Surface treatment for micromachining'20005,714,407'Etching agent, electronic device and method of manufacturing the device'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2011Patents assigned to OHMI TADAHIRO (2)· patent assignee history
1998–2015Based in Sakai, JP· patent location history
2000–2011Patents assigned to STELLA CHEMIFA KK (7)· patent assignee history
2000–2013Based in Osaka, JP· patent location history
2011–2015Patents assigned to MIYASHITA MASAYUKI (3)· patent assignee history
2011–2013Patents assigned to KIKUYAMA HIROHISA (2)· patent assignee history
2011–2015Patents assigned to STELLA CHEMIFA CORP (2)· patent assignee history
2011Based in Aizumiootsu, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| STELLA CHEMIFA KK | 7 | 2000–2011 |
| MIYASHITA MASAYUKIself | 3 | 2011–2015 |
| KIKUYAMA HIROHISA | 2 | 2011–2013 |
| OHMI TADAHIRO | 2 | 1998–2011 |
| STELLA CHEMIFA CORP | 2 | 2011–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 8 | 2000–2013 |
| Sakai, JP | 3 | 1998–2015 |
| Aizumiootsu, JP | 1 | 2011 |