Valve Device And Shock Absorber Provided With This Valve Device

Abstract: A valve device (30) includes a cylindrical passage forming member (40) and a cylindrical spool valve (60) that is slidable with respect to the passage forming member (40). The passage forming member (40) has a communication port (56) that provides communication between the inside and the outside in the radial direction. The spool valve (60) has cutout parts (62, 63) that are cut out on one end surface (61) in the axial direction (Rs). The spool valve (60) can adjust the degree of communication of the cutout parts (62, 63) with respect to the communication port (56) through the relative displacement with respect to the passage forming member (40).

Patent Information

Application #

Filing Date

30 March 2026

Publication Number

15/2026

Publication Type

INA

Invention Field

MECHANICAL ENGINEERING

Status

Email

Parent Application

Applicants

ASTEMO, LTD.

2-1, Otemachi 2-chome, Chiyoda-ku, Tokyo 1000004

Inventors

1. MURAKAMI, Yosuke

c/o Hitachi Astemo, Ltd., 2520 Takaba, Hitachinaka-shi, Ibaraki 3128503

Specification

Documents

Application Documents

#	Name	Date
1	202647039357-STATEMENT OF UNDERTAKING (FORM 3) [30-03-2026(online)].pdf	2026-03-30
2	202647039357-PROOF OF RIGHT [30-03-2026(online)].pdf	2026-03-30
3	202647039357-FORM 18 [30-03-2026(online)].pdf	2026-03-30
4	202647039357-FORM 1 [30-03-2026(online)].pdf	2026-03-30
5	202647039357-DRAWINGS [30-03-2026(online)].pdf	2026-03-30
6	202647039357-DECLARATION OF INVENTORSHIP (FORM 5) [30-03-2026(online)].pdf	2026-03-30
7	202647039357-COMPLETE SPECIFICATION [30-03-2026(online)].pdf	2026-03-30
8	202647039357-FORM-26 [01-04-2026(online)].pdf	2026-04-01
9	202647039357-Proof of Right [02-04-2026(online)].pdf	2026-04-02
10	202647039357-PATENT_APPLICATION_PUBLICATION.pdf	2026-04-11
11	202647039357-FORM 3 [28-07-2026(online)].pdf	2026-07-28