Inventor
Yukihiko Yamashita
Inventor
Ichihara, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C08Lprimary
C08LCompositions of macromolecular compounds26%
H05KPrinted circuits11%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1011%
B23KSoldering or unsoldering5%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds5%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds5%
C08JWorking-up5%
C22CAlloys5%
G02BOptical elements, systems or apparatus5%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices5%
PatentTitleYear
9,656,353'Reflow film, solder bump formation method, solder joint formation method, and semiconductor device'20178,461,699'Positive-type photosensitive resin composition, method for producing resist pattern, semiconductor device, and electronic device'20137,295,376'Pseudo cross-link type resin composition, molding material, sheet or film, and optical element obtained therefrom'20076,903,160'Pseudocross-linking resin composition, molded materials, sheet or film made therefrom, and optical elements'20056,900,273'Low-hygroscopicity low-birefringence resin compositions, molding material obtained therefrom, sheet or film, and optical part'20056,767,967'Pseudo cross-link type resin composition, molding material, sheet or film, and optical element obtained therefrom'20045,238,730'Electrical laminate with dibasic acid-modified epoxy (meth)acrylate'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2017Patents assigned to HITACHI CHEMICAL CO LTD (7)· patent assignee history
1993Based in Hitachi, JP· patent location history
2004–2007Based in Ichihara, JP· patent location history
2013Patents assigned to MATSUTANI HIROSHI (1)· patent assignee history
2013Patents assigned to NANAUMI KEN (1)· patent assignee history
2013Patents assigned to NICOLAS ALEXANDRE (1)· patent assignee history
2013Patents assigned to TANIMOTO AKITOSHI (1)· patent assignee history
2013–2017Based in Tsukuba, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI CHEMICAL CO LTD | 7 | 1993–2017 |
| MATSUTANI HIROSHI | 1 | 2013 |
| NANAUMI KEN | 1 | 2013 |
| NICOLAS ALEXANDRE | 1 | 2013 |
| TANIMOTO AKITOSHI | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Ichihara, JP | 4 | 2004–2007 |
| Tsukuba, JP | 2 | 2013–2017 |
| Hitachi, JP | 1 | 1993 |