Inventor
Youichirou Kaga
Inventor
Saitama, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H05Kprimary
H05KPrinted circuits24%
C04BLime, magnesia21%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1021%
Y10TTechnical subjects covered by former us classification10%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form7%
H01LSemiconductor devices7%
C01BNon-metallic elements3%
H10DInorganic electric semiconductor devices3%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h103%
PatentTitleYear
10,669,210Silicon nitride sintered substrate, silicon nitride sintered substrate sheet, circuit substrate, and production method for silicon nitride sintered substrate20209,655,237'Silicon nitride substrate and method for producing silicon nitride substrate'20178,858,865'Silicon nitride substrate manufacturing method, silicon nitride substrate, silicon nitride circuit substrate, and semiconductor module'20148,586,493'Silicon nitride sintered body, method of producing the same, and silicon nitride circuit substrate and semiconductor module using the same'20138,563,869'Circuit board and semiconductor module using this, production method for circuit board'20137,948,075'Silicon nitride substrate, method of manufacturing the same, and silicon nitride circuit board and semiconductor module using the same'20117,915,533'Silicon nitride substrate, a manufacturing method of the silicon nitride substrate, a silicon nitride wiring board using the silicon nitride substrate, and semiconductor module'2011Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2011–2020Patents assigned to HITACHI METALS LTD (7)· patent assignee history
2011–2013Based in Saitama, JP· patent location history
2011Based in Kitakyushu, JP· patent location history
2013–2014Patents assigned to KAGA YOUICHIROU (3)· patent assignee history
2013–2014Patents assigned to WATANABE JUNICHI (3)· patent assignee history
2013–2014Patents assigned to IMAMURA HISAYUKI (2)· patent assignee history
2014–2020Based in Tokyo, JP· patent location history
2017Based in Kitakyushi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI METALS LTD | 7 | 2011–2020 |
| KAGA YOUICHIROUself | 3 | 2013–2014 |
| WATANABE JUNICHI | 3 | 2013–2014 |
| IMAMURA HISAYUKI | 2 | 2013–2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Saitama, JP | 3 | 2011–2013 |
| Tokyo, JP | 2 | 2014–2020 |
| Kitakyushi, JP | 1 | 2017 |
| Kitakyushu, JP | 1 | 2011 |