公开(公告)号：US20200308482A1

公开(公告)日：2020-10-01

申请号：US16302009

申请日：2017-06-30

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.

Inventor： Momoko ISHIKAWA ,  Keita KOBAYASHI ,  Nanae OGATA ,  Kenji MORI ,  Tomonori TOJO

IPC: C09K11/54 ,  A61K8/27

Abstract: The present invention provides a method for easily and simply producing a zinc oxide phosphor that has a high level of safety and a high emission intensity and is useful for, for example, cosmetic applications. The present invention also provides a zinc oxide phosphor having such excellent physical properties and a cosmetic product containing the same. Provided is a method for producing a zinc oxide phosphor, including: a raw material mixing step of mixing an oxygen-containing zinc compound and a sulfur-containing compound; and a firing step of firing the raw material mixture obtained in the raw material mixing step, the firing step including firing in a reducing atmosphere followed by firing in an oxygen-containing atmosphere.

公开(公告)号：US20200297598A1

公开(公告)日：2020-09-24

申请号：US16767946

申请日：2018-09-21

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.

Inventor： Hisao KOIZUMI ,  Momoko ISHIKAWA ,  Nanae OGATA ,  Kenji MORI

IPC: A61K8/29 ,  A61Q1/12 ,  A61Q1/10 ,  C09K11/57 ,  C09K11/64 ,  A61K8/26 ,  A61K8/27 ,  C09K11/54

Abstract: The present invention provides a cosmetic product capable of making the skin look youthful and producing a natural three-dimensional appearance. The present invention relates to a cosmetic product including two or more phosphors each containing an inorganic compound, wherein the cosmetic product, upon excitation by excitation light having a wavelength of 365 nm, emits an emission spectrum having a fluorescence emission peak in each of the range of 400 to 530 nm and the range of 620 to 720 nm and having an I2/I1 of 1 to 30, where I1 is a maximum emission intensity in the range of 530 to 620 nm and I2 is a maximum peak intensity in the range of 620 to 720 nm.