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:
Oct. 27, 2020
Filed:
Feb. 20, 2018
Optnics Precision Co., Ltd., Ashikaga-shi, Tochigi, JP;
Seichin Kinuta, Ashikaga, JP;
OPTNICS PRECISION CO., LTD., Ashikaga-shi, Tochigi, JP;
Abstract
In a sieve, unit blocks are arrayed along an up-down direction and a left-right direction. Each unit block includes elongated holes and short holes that are shorter than the elongated holes. In each of the unit blocks, the elongated holes include a first elongated hole extending along a first length direction and a second elongated hole extending along a second length direction intersecting an extension line running along the first length direction. Plural of the short holes are arranged in each of the unit blocks so as to be arranged between long edges of adjacent elongated holes of the elongated holes.