Rotor with stress relaxation groove, and centrifuge using rotor with stress relaxation groove

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12194479
APP PUB NO 20220168755A1
SERIAL NO

17442127

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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When this centrifuge is operated, local stress applied to a liquid-feeding groove formed in the upper surface of a rotor core is averaged to minimize deformation of the rotor core. A rotor core, which is mounted inside a rotor used for continuous centrifugation, has a columnar solid section, blades expanding radially outward from the solid section, and a disc section extending radially outward from the upper surface of the solid section, the upper surface of the rotor core being provided with a liquid-feeding grove that continues radially outward from the center vicinity to the outer side. A stress-mitigating groove that extends radially outward is formed in the lower surface of the liquid-feeding grove. The stress-mitigating groove is formed in a position overlapping the position of the liquid-feeding grove when the disc section is viewed along the axial direction.

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Patent Owner(s)

Patent OwnerAddress
EPPENDORF HIMAC TECHNOLOGIES CO LTD1060 TAKEDA HITACHINAKA-CITY IBARAKI 312-8502

International Classification(s)

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  • 2020 Application Filing Year
  • B04B Class
  • 114 Applications Filed
  • 62 Patents Issued To-Date
  • 54.39 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sato, Jun Ibaraki, JP 662 10623
Yamamoto, Takuya Ibaraki, JP 89 372

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges48002.557.51012.51517.52022.52527.53032.53537.54042.54547.55052.5

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