Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takuju Nakamura0
Date of Patent
March 21, 2023
0Patent Application Number
170845340
Date Filed
October 29, 2020
0Patent Citations Received
Patent Primary Examiner
CPC Code
An outer wall material includes a first transparent member integrally or separately including a transparent plate material and a prism portion; and a reflection member provided on a second side of the prism portion of the first transparent member. The prism portion causes the reflection member to collect light whose angle with respect to a normal line of the plate material is equal to or greater than a predetermined angle and to retro-reflect the collected light, and transmits light whose angle with respect to the normal line of the plate material is less than the predetermined angle.
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