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:
Jun. 16, 1992
Filed:
Oct. 04, 1990
Toshihiko Nakane, Yokohama, JP;
Masumi Koishi, Sagamihara, JP;
Hiroshi Fukui, Yokohama, JP;
Yutaka Okunuki, Yokohama, JP;
Yoshio Yahata, Yokohama, JP;
Shigenori Kumagai, Yokohama, JP;
Hiroyuki Yokoyama, Yokohama, JP;
Eiichiro Yagi, Yokohama, JP;
Minoru Fukuda, Yokohama, JP;
Tadao Ohta, Yokohama, JP;
Fujihiro Kanda, Yokohama, JP;
Kazuhisa Ohno, Yokohama, JP;
Toshihide Ebisawa, Yokohama, JP;
Tomiyuki Nanba, Yokohama, JP;
Susumu Takada, Yokohama, JP;
Masato Hatao, Yokohama, JP;
Masaru Suetsugu, Yokohama, JP;
Shiseido Company Ltd., Tokyo, JP;
Abstract
A composite powder wherein an organic or inorganic core powder is substantially completely covered with one or more types of organic, inorganic, or metallic powders having an average particle size one-fifth or less of the average particle size of the above core powder by means of mixing and compression. The composite powder may be manufactured by mixing and compressing the above core powder and coating powder using a ball mill or other mixer charged with a ball shaped mixing medium of an average diameter of 5 mm or less. This composite powder may be used in, for example, skin treatment agent, makeup type cosmetics, sunburn preventing cosmetics, deodorants.