Cyclic compound and optical material composition including same
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United States of America Patent
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Mar 1, 2016
filing date -
Mar 27, 2015
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In Force
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Abstract
One embodiment of the present invention can provide an optical material composition that includes a cyclic compound that is represented by formula (1) and an episulfide that is represented by formula (2). Another embodiment of the present invention can provide an optical material production method that includes a step wherein, with respect to the total amount of the optical material composition, 0.0001-10 mass % of a polymerization catalyst is added to the optical material composition and the optical material composition is polymerization cured. (In formula (2), m is an integer from 0 to 4, and n is an integer from 0 to 2.)
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 | |
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MITSUBISHI GAS CHEMICAL COMPANY INC | TOKYO 100-8324 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Aoki, Takashi | Osaka, JP | 477 | 5143 |
# of filed Patents : 477 Total Citations : 5143 | |||
Kariyazono, Kazuki | Osaka, JP | 4 | 6 |
# of filed Patents : 4 Total Citations : 6 |
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- 7 Age
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Maintenance Fees
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 27, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 27, 2029 |
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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

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Feb 10, 2023 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF PATENT SECURITY INTEREST PREVIOUSLY RECORDED AT REEL/FRAME (040646/0799);ASSIGNOR:HSBC BANK USA, NATIONAL ASSOCIATION, AS RESIGNING AGENT;REEL/FRAME:062781/0544 Owner name: JPMORGAN CHASE BANK, N.A., AS SUCCESSOR AGENT, ILLINOIS Effective Date: Feb 10, 2023 |
Jul 11, 2022 | 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: LARGE ENTITY |
Jan 24, 2022 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jun 18, 2019 | I | Issuance | |
Nov 17, 2016 | AS | ASSIGNMENT | free format text: SECURITY INTEREST;ASSIGNORS:SEMTECH CORPORATION;SEMTECH NEW YORK CORPORATION;SIERRA MONOLITHICS, INC.;AND OTHERS;SIGNING DATES FROM 20151115 TO 20161115;REEL/FRAME:040646/0799 Owner name: HSBC BANK USA, NATIONAL ASSOCIATION, AS ADMINISTRA free format text: SECURITY INTEREST;ASSIGNORS:SEMTECH CORPORATION;SEMTECH NEW YORK CORPORATION;SIERRA MONOLITHICS, INC.;AND OTHERS;SIGNING DATES FROM 20151115 TO 20161115;REEL/FRAME:040646/0799 Owner name: HSBC BANK USA, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT, CALIFORNIA |
Jun 03, 2016 | F | Filing |

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