IP Library › Granted Patent US 12,697,805
Granted Patent B2
US 12,697,805 · App. 18/664,460 · Granted Aug 4, 2026

Propulsion strengthening member

Inventors: Tadanori Fukushima (Tokyo, JP); Jun Yamada (Tokyo, JP); Daisuke Hirata (Tokyo, JP); Toshikazu Ebisuzaki (Wako, JP); Satoshi Wada (Wako, JP)
Assignees: SKY Perfect JSAT Corporation; Riken
B32B27/08B64G1/1081B64G1/242B32B2250/42B32B2307/41B32B2307/412F41H13/005
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Quick Facts
Patent No.
US 12,697,805
App. No.
18/664,460
Filed
May 15, 2024
Granted
Aug 4, 2026
Kind
B2
Art Unit
3644
USPC
244/171.1
Abstract

A propulsion strengthening member attached to a surface of an object existing in outer space, the propulsion strengthening member includes: a transparent member that transmits an emitted laser; and an opaque member that is provided between the transparent member and the object and absorbs the laser such that at least a part thereof is evaporated by energy of the laser.

Claims (24)

1 . A method comprising:

(a) attaching a propulsion strengthening member to a surface of an object existing in outer space, the propulsion strengthening member comprising:

a transparent member that transmits an emitted laser; and

an opaque member that is provided between the transparent member and the object and absorbs the laser such that at least a part thereof is evaporated by energy of the laser; and,

(b) irradiating the propulsion strengthening member with the laser to change an orbit and/or attitude of the object using a force generated by the evaporation of the at least a part of the opaque member.

2 . The method according to claim 1 , comprising stacking two or more transparent members and two or more opaque members alternately.

3 . The method according to claim 1 , wherein the transparent member is a sheet-form member.

4 . The method according to claim 1 , wherein the transparent member is a spherical member.

5 . The method according to claim 1 , wherein the transparent member is formed from fluororesin.

6 . The method according to claim 1 , wherein the propulsion strengthening member further comprises a protective member provided on at least one face on surfaces of the propulsion strengthening member.

7 . The method according to claim 6 , wherein the protective member has a light-blocking property for blocking sunlight.

8 . The method according to claim 6 , wherein the protective member is resistant to atomic oxygen.

9 . The method according to claim 8 , wherein at least a part of the protective member is formed from fluororesin.

10 . The method according to claim 1 , comprising applying a symbol for identifying the propulsion strengthening member to the surface of the propulsion strengthening member.

11 . The method according to claim 1 , wherein the opaque member comprises acrylic containing a black material.

12 . The method according to claim 1 , wherein the object is an artificial satellite, and the propulsion strengthening member is attached to the surface of the artificial satellite prior to a launch of the artificial satellite.

13 . The method according to claim 1 , wherein the propulsion strengthening member is attached to the object in a strip shape on the surface of the object.

14 . A method according to claim 1 , wherein the plurality of the propulsion strengthening members are attached to the object in a strip shape, and angles of the plurality of the propulsion strengthening member are set to be modifiable.

15 . A method comprising:

(a) attaching a propulsion strengthening member to a surface of an object existing in outer space, the propulsion strengthening member comprising:

a transparent member that transmits an emitted laser; and

an opaque member that absorbs the laser such that at least a part thereof is evaporated by energy of the laser, wherein the transparent member is provided within the opaque member; and,

(b) irradiating the propulsion strengthening member with a laser to change an orbit and/or attitude of the object using a force generated by the evaporation of the at least a part of the opaque member.

16 . The method according to claim 15 , wherein the transparent member is a spherical member.

Assignments (4)
CHANGE OF NAME Recorded Jun 25, 2026
From: SKY PERFECT JSAT HOLDINGS INC.
To: SKY PERFECT JSAT CORPORATION
Reel/Frame 075826/0937 →
MERGER Recorded Jun 25, 2026
From: SKY PERFECT JSAT CORPORATION
To: SKY PERFECT JSAT HOLDINGS INC.
Reel/Frame 075837/0441 →
MERGER Recorded Jun 25, 2026
From: SKY PERFECT JSAT HOLDINGS INC.
To: SKY PERFECT JSAT CORPORATION
Reel/Frame 075883/0137 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 11, 2024
From: FUKUSHIMA, TADANORI; YAMADA, JUN; HIRATA, DAISUKE; EBISUZAKI, TOSHIKAZU; WADA, SATOSHI
To: SKY PERFECT JSAT CORPORATION; RIKEN
Reel/Frame 067690/0822 →
Continuity (2)
Continuation 17424344 · Jan 21, 2019
Related Publication 20240300221A1 · Sep 12, 2024
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