Piezoelectric mechanism for generating discharge voltage
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 8, 2008
Grant Date -
May 11, 2006
app pub date -
Jan 13, 2006
filing date -
Oct 5, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Malfunctions caused by dusts such as sands and the like in movement portions of a spark-voltage generation mechanism are reduced. The generation mechanism comprises an outer-box assembly in which a base piece, piezoelectric element, and anvil are disposed in line with the longitudinal axis, an axis-direction cam groove is formed thereon, an inner-box assembly in which a hammer that strikes the piezoelectric element and a hammer spring are housed, a cam hole is formed thereon, and a joint-case assembly that limits the stroke of the outer-box assembly over the inner box-assembly, generates a high-voltage pulse by series of operations where one-way-pressure force is applied with a hammer pin inserted into the hammer, the cam groove, and the cam hole to compress and release the hammer spring. The hammer strikes the piezoelectric element by releasing the compression force of the hammer spring, the operation mechanism is shielded with the joint-case assembly.
First Claim
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
JP | B2 | JP4653451 | Oct 05, 2004 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
PUBLISHED GRANTED PATENT (SECOND LEVEL) | PIEZOELECTRIC MECHANISM FOR GENERATING DISCHARGE VOLTAGE | Mar 16, 2011 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
TOKAI CORPORATION | SUNTO-GUN 3-4 SHIMOHARA SUBASHIRI OYAMA-CHO SHIZUOKA-KEN |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Ichikawa, Toshihiro | Sunto-gun, Shizuoka, JP | 19 | 373 |
# of filed Patents : 19 Total Citations : 373 |
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Patent Citation Ranking
- 2 Citation Count
- H01L Class
- 1.99 % this patent is cited more than
- 17 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 |
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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

Legal Events
Date | Code | Event | Description |
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Aug 08, 2016 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jul 08, 2016 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jul 08, 2016 |
Jul 08, 2016 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Feb 19, 2016 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Sep 22, 2011 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Jul 08, 2008 | I | Issuance | |
May 11, 2006 | P | Published | |
Jan 13, 2006 | F | Filing | |
Dec 15, 2005 | AS | ASSIGNMENT | free format text: CORRECTIVE ASSIGNMENT TO CORRECT RECEIVING PARTY, PREVIOUSLY RECORDED ON REEL 017642 FRAME 0112;ASSIGNOR:TOSHIHIRO, ICHIKAWA;REEL/FRAME:017710/0044 Owner name: TOKAI CORPORATION, JAPAN Effective Date: Dec 15, 2005 |
Dec 15, 2005 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ICHIKAWA, TOSHIHIRO;REEL/FRAME:017642/0112 Owner name: TOAI CORPORATION, JAPAN Effective Date: Dec 15, 2005 |
Oct 05, 2004 | PD | Priority Date |

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