Semiconductor device using whiskers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 8, 1994
Grant Date -
N/A
app pub date -
Apr 17, 1991
filing date -
Apr 20, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A field effect transistor and a ballistic transistor using semiconductor whiskers each having a desired diameter and formed at s desired location, a semiconductor vacuum microelectronic device using the same as electron emitting materials, a light emitting device using the same as quantum wires and the like are disclosed.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
HITACHI LTD | TOKYO 100-8280 | |
HITACHI VLSI ENGINEERING | A CORPORATION OF JAPAN 20-1 JOUSUIHOHCHO 5-CHOME KODAIRA-SHI TOKYO |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Futigami, Nobutaka | Mitaka, JP | 1 | 255 |
# of filed Patents : 1 Total Citations : 255 | |||
Hiruma, Kenji | Tokorozawa, JP | 20 | 684 |
# of filed Patents : 20 Total Citations : 684 | |||
Kakibayashi, Hiroshi | Nagareyama, JP | 19 | 701 |
# of filed Patents : 19 Total Citations : 701 | |||
Katsuyama, Toshio | Ome, JP | 49 | 799 |
# of filed Patents : 49 Total Citations : 799 | |||
Koguchi, Masanari | Higashikurume, JP | 30 | 665 |
# of filed Patents : 30 Total Citations : 665 | |||
Matsumoto, Hidetoshi | Kodaira, JP | 72 | 1093 |
# of filed Patents : 72 Total Citations : 1093 | |||
Morgan, Gerard P | Galway, IE | 2 | 377 |
# of filed Patents : 2 Total Citations : 377 | |||
Ogawa, Kensuke | Hachioji, JP | 43 | 896 |
# of filed Patents : 43 Total Citations : 896 | |||
Yazawa, Masamitsu | Yokohama, JP | 3 | 325 |
# of filed Patents : 3 Total Citations : 325 |
Cited Art Landscape
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Patent Citation Ranking
- 255 Citation Count
- H01L Class
- 98.97 % this patent is cited more than
- 31 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Date | Code | Event | Description |
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Jun 06, 2023 | P | Publication | |
May 17, 2023 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
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Dec 27, 2022 | F | Filing | |
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