The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 04, 2018
Filed:
Apr. 04, 2018
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Memory-tech Holdings Inc., Minato-ku, Tokyo, JP;
Takayuki Naka, Sakai, JP;
Hirohisa Yamada, Sakai, JP;
Masaki Yamamoto, Sakai, JP;
Hideharu Tajima, Sakai, JP;
Masahito Konishi, Chikusei, JP;
Sharp Kabushiki Kaisha, Sakai, JP;
Memory-Tech Holdings Inc., Tokyo, JP;
Abstract
In a case where (i) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in a first pit row is defined as a first reflectance and (ii) a reflectance calculated from a reflected light amount obtained from a longest pit (Pmax) or a longest space (Smax) in the second pit row is defined as a second reflectance, the first pit row is formed such that the first reflectance becomes substantially identical with the second reflectance.