Constant velocity joint
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 31, 2006
Grant Date -
Sep 15, 2005
app pub date -
Jun 5, 2003
filing date -
Jun 6, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The contact angle of the ball 15 with each first guide track 21 of an inner joint member 12 is made to become smaller gradually from an opening portion side toward a bottom portion side, and the curvature radius for the first guide track 21 is made to become larger gradually from the opening portion side toward the bottom portion side. If the contact angle only were made to become smaller gradually from the opening portion side toward the bottom portion side, the contact angle would become too small thereby to cause chattering in rotation to be generated. If the curvature radius only were made to become larger gradually from the opening portion side toward the bottom portion side, a contact ellipse M2 defined by the ball 15 and the first guide track 21 would become tool small, which would cause the ball 15 to make dents on the surface of the first guide track 21. However, the aforementioned drawbacks can be obviated by gradually diminishing the contact angle and gradually enlarging the curvature radius from the opening portion side toward the bottom portion side.
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 | |
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TOYODA KOKI KABUSHIKI KAISHA | 1-1 ASAHI-MACHI KARIYA-SHI AICHI-KEN |
International Classification(s)

- 2003 Application Filing Year
- F16D Class
- 964 Applications Filed
- 359 Patents Issued To-Date
- 37.25 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Ichikawa, Kazuyuki | Okazaki, JP | 22 | 68 |
# of filed Patents : 22 Total Citations : 68 | |||
Ohwaki, Tomonori | Kariya, JP | 2 | 5 |
# of filed Patents : 2 Total Citations : 5 | |||
Suzuki, Tomoo | Chita-gun, JP | 56 | 444 |
# of filed Patents : 56 Total Citations : 444 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- F16D Class
- 4.36 % this patent is cited more than
- 19 Age
Forward Cite Landscape
- No Forward Cites to Display

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 |
---|---|---|---|
Oct 29, 2018 | 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 |
Oct 29, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Sep 21, 2018 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Sep 21, 2018 |
May 07, 2018 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.) |
Mar 21, 2014 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Sep 21, 2010 | I | Issuance | |
Apr 28, 2005 | P | Published | |
Oct 27, 2003 | F | Filing | |
Oct 27, 2003 | PD | Priority Date | |
Oct 23, 2003 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:HARTMANN-THOMPSON, CLAIRE;REEL/FRAME:014644/0464 Owner name: MICHIGAN MOLECULAR INSTITUTE, MICHIGAN Effective Date: Oct 23, 2003 |

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