ROTARY SHAFT LOCKING DEVICE, MACHINING HEAD, AND MULTI-TASKING MACHINE
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 -
Sep 14, 2023
app pub date -
May 15, 2023
filing date -
May 15, 2023
priority date (Note) -
Published
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
A rotary shaft locking device includes a rotary shaft, a first angular contact ball bearing, a support, and an actuator. The rotary shaft is rotatable about a first axis and has a first contact surface. The first angular contact ball bearing includes an inner ring connected to the rotary shaft, an outer ring, and a plurality of balls disposed between the inner ring and the outer ring. The support has a second contact surface and rotatably supports the rotary shaft via the first angular contact ball bearing. The actuator is configured to move the rotary shaft and the inner ring with respect to the support and the outer ring in a first direction parallel to the first axis so that the first contact surface contacts the second contact surface to prohibit the rotary shaft from rotating and so that precompression that acts on the plurality of balls is reduced.
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 | |
---|---|---|
YAMAZAKI MAZAK CORPORATION | NIWA-GUN AICHI 480-0197 |
International Classification(s)

- 2023 Application Filing Year
- B23Q Class
- 261 Applications Filed
- 64 Patents Issued To-Date
- 24.53 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
NAKAMURA, Shinya | Niwa-gun, JP | 166 | 1705 |
# of filed Patents : 166 Total Citations : 1705 | |||
SASAKI, Hiroto | Niwa-gun, JP | 51 | 552 |
# of filed Patents : 51 Total Citations : 552 | |||
SATO, Kimihiko | Niwa-gun, JP | 59 | 653 |
# of filed Patents : 59 Total Citations : 653 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- B23Q Class
- 0 % this patent is cited more than
- 2 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Mar 14, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 14, 2031 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 14, 2035 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
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