Inventor
Hirohisa Yamamoto
Inventor
Tokyo, JP
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Dprimary
H10DInorganic electric semiconductor devices24%
G06FElectric digital data processing14%
H01JElectric discharge tubes or discharge lamps10%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1010%
A61KPreparations for medical, dental or toiletry purposes5%
C03CChemical composition of glasses, glazes or vitreous enamels5%
C23CCoating metallic material5%
G21KHandling of particles or ionising radiation not otherwise provided for5%
H04LTransmission of digital information, e.g. telegraphic communication5%
H05KPrinted circuits5%
PatentTitleYear
7,902,027'Method of manufacturing a semiconductor device including recessed-channel-array MOSFET having a higher operational speed'20117,745,303'Method of manufacturing a semiconductor device and the semiconductor device'20107,539,731'Method for automatically sending messages at desired appropriate timings and an automatic message sending service system'20096,797,048'Method for preparing glass-ceramic'20046,631,376'Exchange servicing development support system with a function of automatic replacement of edited contents'20036,624,095'Method for manufacturing a semiconductor device'20035,734,381'Cancel undo method and system for tree structure data edition based on hierarchical menu inquiry'19985,404,309'Cad apparatus for designing pattern of electric circuit'19955,354,986'Ion implantation apparatus'19945,293,508'Ion implanter and controlling method therefor'19945,187,558'Stress reduction structure for a resin sealed semiconductor device'1993Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1993–2003Patents assigned to MITSUBISHI ELECTRIC CORP (4)· patent assignee history
1994Based in Itami, JP· patent location history
1995Patents assigned to SHARP KK (1)· patent assignee history
1995Based in Nabari, JP· patent location history
1998–2009Patents assigned to NEC CORP (3)· patent assignee history
1998–2011Based in Tokyo, JP· patent location history
2004Patents assigned to YAMAMOTO PRECIOUS METAL CO LTD (1)· patent assignee history
2004Based in Osaka, JP· patent location history
2009Based in Minato-ku, JP· patent location history
2010–2011Patents assigned to ELPIDA MEMORY INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI ELECTRIC CORP | 4 | 1993–2003 |
| NEC CORP | 3 | 1998–2009 |
| ELPIDA MEMORY INC | 2 | 2010–2011 |
| SHARP KK | 1 | 1995 |
| YAMAMOTO PRECIOUS METAL CO LTD | 1 | 2004 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 5 | 1998–2011 |
| Itami, JP | 2 | 1994 |
| Minato-ku, JP | 1 | 2009 |
| Osaka, JP | 1 | 2004 |
| Nabari, JP | 1 | 1995 |