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:
May. 17, 1977
Filed:
Dec. 05, 1974
Hiroshi Miyake, Tokyo, JA;
Makoto Iriuchijima, Soka, JA;
Eiji Takahashi, Soka, JA;
Kiyoshi Terata, Saitama, JA;
Hiroki Kamiyama, Soka, JA;
Masami Kurihara, Kohsigaya, JA;
Etsuo Suzuki, Saitama, JA;
Tsutomu Idai, Soka, JA;
Maruzen Oil Co. Ltd., Osaka, JA;
Abstract
A process for producing an infusible and insoluble granular sulfurized material by reacting a petroleum heavy material and sulfur with stirring in the presence of a reaction medium and further in the presence of, if necessary, an infusible and insoluble solid material, and, further, a process for producing granular carbon comprising carbonizing the granular sulfurized material produced above or alternatively a process for producing granular activated carbon comprising carbonizing and activating the granular sulfurized material.