METHOD FOR OPERATING CRYOCOOLER AND CRYOCOOLER
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 -
Apr 11, 2024
app pub date -
Sep 26, 2023
filing date -
Oct 6, 2022
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
A method for operating a cryocooler includes: connecting a second compressor in series with a first compressor on a high pressure line or a low pressure line; connecting a buffer volume to the low pressure line via a supply valve; executing initial cooling for cooling an expander from an initial temperature to a cryogenic temperature in a state where the second compressor and the buffer volume are connected to the cryocooler; and executing a steady operation of maintaining the expander at the cryogenic temperature after the initial cooling. The execution of the initial cooling includes supplying a working gas to the expander by using the first compressor and the second compressor, and controlling the supply valve to keep a pressure of the high pressure line within a preset appropriate pressure range based on the measured pressure of the high pressure line.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
JP | A | JP2024055145 | Oct 06, 2022 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
Published unexamined patent application | 極低温冷凍機の運転方法および極低温冷凍機 | Apr 18, 2024 | |||
CN | A | CN117847815 | Sep 11, 2023 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
UNEXAMINED APPLICATION FOR A PATENT FOR INV. | Operation method of ultralow temperature refrigerator and ultralow temperature refrigerator | Apr 09, 2024 | |||
EP | A2 | EP4350249 | Sep 12, 2023 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION PUBLISHED WITHOUT SEARCH REPORT | METHOD FOR OPERATING CRYOCOOLER AND CRYOCOOLER | Apr 10, 2024 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SUMITOMO HEAVY INDUSTRIES LTD | 1-1 OSAKI 2-CHOME SHINAGAWA-KU TOKYO 141-6025 |
International Classification(s)

- 2023 Application Filing Year
- F25B Class
- 638 Applications Filed
- 140 Patents Issued To-Date
- 21.95 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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MATSUI, Takaaki | Tokyo, JP | 43 | 118 |
# of filed Patents : 43 Total Citations : 118 | |||
YOKODO, Takayuki | Tokyo, JP | 4 | 0 |
# of filed Patents : 4 Total Citations : 0 |
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Patent Citation Ranking
- 0 Citation Count
- F25B Class
- 0 % this patent is cited more than
- 1 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 11, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 11, 2031 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 11, 2035 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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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