Thermally conductive sheet and semiconductor device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 2, 2018
Issued Date -
N/A
app pub date -
Jan 28, 2015
filing date -
Feb 3, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A thermally conductive sheet of the present invention includes a thermosetting resin (A) and an inorganic filler material (B) that is dispersed in the thermosetting resin (A). In the thermally conductive sheet of the present invention, at a frequency of 1 kHz and at a temperature of 100° C. to 175° C., the maximum value of a dielectric loss factor of a cured product of the thermally conductive sheet is less than or equal to 0.030, and a change in relative dielectric constant of the cured product of the thermally conductive sheet is less than or equal to 0.10.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SUMITOMO BAKELITE CO LTD | TOKYO 140-0002 |
International Classification(s)

- 2015 Application Filing Year
- H01L Class
- 25498 Applications Filed
- 22451 Patents Issued To-Date
- 88.06 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hirasawa, Kazuya | Kariya, JP | 13 | 78 |
# of filed Patents : 13 Total Citations : 78 | |||
Kitagawa, Kazuya | Tokyo, JP | 11 | 17 |
# of filed Patents : 11 Total Citations : 17 | |||
Kurokawa, Motomi | Aichi, JP | 7 | 4 |
# of filed Patents : 7 Total Citations : 4 | |||
Maji, Satoshi | Utsunomiya, JP | 3 | 4 |
# of filed Patents : 3 Total Citations : 4 | |||
Mochizuki, Shunsuke | Tokyo, JP | 44 | 244 |
# of filed Patents : 44 Total Citations : 244 | |||
Nagahashi, Keita | Tokyo, JP | 8 | 6 |
# of filed Patents : 8 Total Citations : 6 | |||
Shirato, Yoji | Tokyo, JP | 11 | 34 |
# of filed Patents : 11 Total Citations : 34 | |||
Tsuda, Mika | Tokyo, JP | 10 | 7 |
# of filed Patents : 10 Total Citations : 7 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- H01L Class
- 0 % this patent is cited more than
- 7 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 2, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 2, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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

Legal Events
Date | Code | Event | Description |
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Oct 21, 2024 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 21, 2024 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Sep 13, 2024 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Sep 13, 2024 |
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Dec 17, 2019 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4 |
Sep 13, 2016 | I | Issuance | |
Aug 24, 2016 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Aug 09, 2016 | ZAAA | NOTICE OF ALLOWANCE AND FEES DUE | free format text: ORIGINAL CODE: NOA |
Aug 09, 2016 | ZAAB | NOTICE OF ALLOWANCE MAILED | free format text: ORIGINAL CODE: MN/=. |
May 19, 2016 | P | Published | |
Mar 25, 2015 | F | Filing | |
Feb 26, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:WU, MEI-LI;CHAUNG, HSO-CHI;KE, GUAN-MING;REEL/FRAME:035293/0248 Owner name: NATIONAL PINGTUNG UNIVERSITY OF SCIENCE AND TECHNO Effective Date: Feb 26, 2015 |
Nov 19, 2014 | PD | Priority Date |

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