Inventor
Ryohei Tanuma
Inventor
Kanagawa, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Sprimary
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light38%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein31%
C30BSingle-crystal growth6%
G02BOptical elements, systems or apparatus6%
H01LSemiconductor devices6%
H10DInorganic electric semiconductor devices6%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%
PatentTitleYear
10,181,517Silicon carbide single crystal, silicon carbide single crystal wafer, silicon carbide single crystal epitaxial wafer, and electronic device20195,617,442'Solid-state laser device with diffused-light excitation, and integrating sphere'19975,581,573'Solid-state laser device with diffused-light excitation, and integrating sphere'19965,581,569'Solid state laser apparatus'19965,561,550'Wavelength conversion device including an unstable optical resonator with concave mirrors'19965,541,765'Wavelength conversion device'19965,490,161'Solid-state laser device with diffused-light excitation, and integrating sphere'19965,483,374'Wavelength conversion device using an external unstable cavity'19965,402,438'Solid state laser device'19955,355,246'Wavelength conversion device'19945,173,799'Wavelength conversion device'19924,958,356'Excimer laser apparatus'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1997Patents assigned to FUJI ELECTRIC CO LTD (10)· patent assignee history
1990Based in Kanawa, JP· patent location history
1992–1996Based in Kanagawa, JP· patent location history
1996–1997Based in Kawasaki, JP· patent location history
1996–2019Based in Yokosuka, JP· patent location history
2019Patents assigned to DENSO CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJI ELECTRIC CO LTD | 10 | 1990–1997 |
| DENSO CORP | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kanagawa, JP | 6 | 1992–1996 |
| Kawasaki, JP | 3 | 1996–1997 |
| Yokosuka, JP | 2 | 1996–2019 |
| Kanawa, JP | 1 | 1990 |