Silicon dioxide film and process for preparation of the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Aug 31, 2006
app pub date -
Mar 25, 2004
filing date -
Mar 25, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A transparent amorphous silicon dioxide film containing many fine voids, characterized in that the refractive index (for light at .lamda.=500 nm) is in the range of 1.01 to 1.40 and that 80 vol. % or more of the fine voids have a diameter of 5 nm or less, has a low refractive index and excellent physical strength such as high scratch resistance, so that it is advantageously employable as an optical film of an optical device for various uses.
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 | |
---|---|---|
ORGANIZATION OF SHINSHU UNIVERSITY | 1-1 ASAHI 3-CHOME MATSUMOTO-SHI NAGANO 390-8621 | |
HIOKI DENKI KABUSHIKI KAISYA | 81 AZA SAKURAMACHI O-AZA KOIZUMI UEDA-SHI NAGANO 386-1192 |
International Classification(s)

- 2004 Application Filing Year
- H01L Class
- 14681 Applications Filed
- 9246 Patents Issued To-Date
- 62.98 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Harano, Masayuki | Nagano, JP | 2 | 7 |
# of filed Patents : 2 Total Citations : 7 | |||
Murakami, Yasushi | Nagano, JP | 60 | 1479 |
# of filed Patents : 60 Total Citations : 1479 | |||
Takasu, Yoshio | Nagano, JP | 52 | 686 |
# of filed Patents : 52 Total Citations : 686 | |||
Taniguchi, Yoshio | Nagano, JP | 53 | 676 |
# of filed Patents : 53 Total Citations : 676 |
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Patent Citation Ranking
- 4 Citation Count
- H01L Class
- 2.11 % this patent is cited more than
- 19 Age
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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 |
---|---|---|---|
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 |
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