Inventor
Akiyasu Yamaguchi
Inventor
Himeji, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps47%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices40%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein7%
H05BElectric heating7%
PatentTitleYear
6,107,741'Cathode structure for short arc type discharge lamp'20005,864,388'Surface activating process, and device and lamp for performing said process'19995,739,636'Cadmium discharge lamp of the short arc type and method of producing UV light therewith'19985,589,735'Emission device with a cadmium lamp'19965,541,481'Cadmium ARC lamp with improved UV emission'19965,481,159'Metal vapor discharge lamp'19965,471,278'Cadmium/rare gas discharge lamp of the short arc type, as well as projection exposure device using the same'19955,107,178'Metal vapor discharge lamp filled with bismuth, mercury, a rare gas, iron and a halogen'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2000Patents assigned to USHIO ELECTRIC INC (8)· patent assignee history
1992–2000Based in Himeji, JP· patent location history
1995Patents assigned to NIPPON KOGAKU KK (1)· patent assignee history
1996Based in Hyogo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| USHIO ELECTRIC INC | 8 | 1992–2000 |
| NIPPON KOGAKU KK | 1 | 1995 |
Locations
| Location | Patents | Span |
|---|---|---|
| Himeji, JP | 7 | 1992–2000 |
| Hyogo, JP | 1 | 1996 |