Patents by Inventor Yuka Ueda

Yuka Ueda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6337089
    Abstract: A microcapsule containing core material and a capsule wall, in which the capsule wall of the microcapsule comprises: organopolysiloxane synthesized by polycondensing one or more compounds represented by the general formula (II): RnSi(OH)mY(4−m−n)  (II) wherein, m represents an integer from 1 to 4; n represents an integer from 0 to 3; m+n≦4; R represents an organic group in which a carbon atom is directly connected to a silicone atom, and when n is greater than 1, each of the R groups may be the same or different; and Y represents at least one group selected from the group consisting of an alkoxy group, hydrogen and siloxy group, and when (4−m−n) is greater than 1, each of the groups Y may be the same or different; provided that the compound (B) comprises at least one compound of formula(II) wherein m=2 or 3 and at least one of R group possesses affinity for at least one of a continuous phase and a dispersed phase; a method for producing the microcapsule; an
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: January 8, 2002
    Assignee: Seiwa Kasei Company, Limited
    Inventors: Masato Yoshioka, Akihiro Segawa, Emi Segawa, Koji Nosaka, Terumi Yoshihara, Takashi Adachi, Hiroshi Shintani, Yuka Ueda