Column device for liquid chromatography and liquid chromatography apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9778232
SERIAL NO

14775402

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A cylindrical column body (101) holds a filler. A pair of end caps (105, 106) covers both ends of the column body (101) and has a flow hole for a carrier liquid (111, 112) arranged in the center thereof. An end surface on the side of a large diameter portion (113a, 114a) of a pair of columnar joint members (113, 114) contacts an end surface of the pair of end caps (105, 106) and also has a communication hole (115, 116) arranged in the center thereof. A sealing member (117, 118) is arranged on a contact surface between the end cap (105, 106) and the joint member (113, 114). A bottomed cylindrical case (121) accommodates the pair of end caps (105, 106) and a large diameter portion of the pair of joint members (113, 114) in an engaged state. A cover member (124) is detachably installed on a side of an opening of the case (121).

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
SEKISUI MEDICAL CO LTD1-3 NIHONBASHI 2-CHOME CHUO-KU TOKYO 103-0027

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Muraki, Hideki Tokyo, JP 8 25
Oka, Takayuki Tokyo, JP 24 137
Yotani, Takuya Tokyo, JP 41 131

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Apr 3, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Apr 3, 2029
Fee Large entity fee small entity fee micro entity fee
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