IP Library Granted Patent US 11,243,187
Granted Patent B2
US 11,243,187 · App. 16/620,961 · Granted Feb 8, 2022

Electrophoretic medium container

Inventors: Naomichi Kawasaki (Tokyo, JP); Ryusuke Kimura (Tokyo, JP); Katsuhiro Aritome (Tokyo, JP); Go Nakajima (Tokyo, JP); Takashi Gomi (Tokyo, JP); Motohiro Yamazaki (Tokyo, JP)
Assignee: Hitachi High-Tech Corporation
G01N27/44704
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,243,187
App. No.
16/620,961
Granted
Feb 8, 2022
Kind
B2
Abstract

The present invention addresses the problem of providing an electrophoretic medium container capable of stabilizing a liquid delivery pressure while ensuring sealing of an electrophoretic medium. In order to resolve this problem, this electrophoretic medium container is provided with a syringe part for holding an electrophoretic medium, and a sealing component for sealing one end of the syringe part, the electrophoretic medium container being characterized in that the sealing component has a sealing surface, a body part, and a groove provided between the sealing surface and the body part, wherein the sealing surface is in contact with the inner wall of the syringe part.

Claims (53)

1. An electrophoretic medium container comprising:

a syringe part that holds an electrophoretic medium; and

a first sealing component that seals one end of the syringe part, wherein

the first sealing component is opened on an upper side and has a U-shaped cross section, and

the first sealing component comprises:

a first sealing surface;

a first body part; and

a first groove provided between the first sealing surface and the first body part, in which the first sealing surface is in contact with an inner wall of the syringe part;

a second sealing component connected in the vertical direction with the first sealing component, wherein

the second sealing component is opened on an upper side and has a U-shaped cross section, and

the second sealing component comprises:

a second sealing surface;

a second body part; and

a second groove provided between the second sealing surface and the second body part in which the second sealing surface is in contact with the inner wall of the syringe part, wherein

 an outer diameter of the first or second sealing surface is larger than an outer diameter of another portion of the sealing component and larger than an inner diameter of the syringe part.

2. The electrophoretic medium container according to claim 1 , wherein

the first or second sealing surface has a concave-convex multistage structure along the vertical direction.

3. The electrophoretic medium container according to claim 2 , wherein

a convex portion of the multistage structure of the first or second sealing surface narrows toward a tip end.

4. The electrophoretic medium container according to claim 1 , wherein

at least one third sealing surface is provided at an uppermost portion of the first or second sealing component.

5. The electrophoretic medium container according to claim 1 , wherein

the first or second sealing surface has a flat surface or a curved surface.

6. The electrophoretic medium container according to claim 1 , wherein

the first or second sealing component has a larger expansion coefficient than the syringe part.

7. The electrophoretic medium container according to claim 1 , wherein

the first and second sealing components are connected by a rod-shaped insertion portion.

8. An electrophoretic medium container comprising:

a syringe part; and

a first sealing component that seals one end of the syringe part, wherein

the first sealing component is opened on an upper side and has a U-shaped cross section, and

the first sealing component comprises:

a first sealing surface;

a first body part; and

a first groove provided between the first sealing surface and the first body part, in which the first sealing surface is in contact with an inner wall of the syringe part;

a second sealing component connected in the vertical direction with the first sealing component, wherein

the second sealing component is opened on an upper side and has a U-shaped cross section, and

the second sealing component comprises:

a second sealing surface;

a second body part; and

a second groove provided between the second sealing surface and the second body part, in which the second sealing surface is in contact with the inner wall of the syringe part.

9. The electrophoretic medium container according to claim 8 , wherein

the first or second sealing surface has a concave-convex multistage structure along the vertical direction.

10. The electrophoretic medium container according to claim 9 , wherein

a convex portion of the multistage structure of the first or second sealing surface narrows toward a tip end.

11. The electrophoretic medium container according to claim 8 , wherein

at least one third sealing surface is provided at an uppermost portion of the first or second sealing component.

12. The electrophoretic medium container according to claim 8 , wherein

the first or second sealing surface has a flat surface or a curved surface.

13. The electrophoretic medium container according to claim 8 , wherein

the first or second sealing component has a larger expansion coefficient than the syringe part.

14. The electrophoretic medium container according to claim 8 , wherein

the first and second sealing components are connected by a rod-shaped insertion portion.

Assignments (2)
CHANGE OF NAME Recorded Apr 14, 2020
From: HITACHI HIGH-TECHNOLOGIES CORPORATION
To: HITACHI HIGH-TECH CORPORATION
Reel/Frame 052398/0249 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 10, 2019
From: KAWASAKI, NAOMICHI; KIMURA, RYUSUKE; ARITOME, KATSUHIRO; NAKAJIMA, GO; GOMI, TAKASHI; YAMAZAKI, MOTOHIRO
To: HITACHI HIGH-TECHNOLOGIES CORPORATION
Reel/Frame 051227/0957 →
Continuity (1)
Related Publication 20200200705A1 · Jun 25, 2020