Patents by Inventor Miwa Syutou

Miwa Syutou 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).

  • Schiff base compounds
    Patent number: 5241102
    Abstract: A Schiff base compound of formula (I): ##STR1## wherein Ar represents an aromatic group, which may have a substituent; n is 0 or 1; and Z represents ##STR2## in which m is an integer of 0 or 1, or ##STR3## provided that when Z is ##STR4## and Ar is a phenyl group and the substituent thereof is an alkoxyl group represented by C.sub.p H.sub.2p+1 O, p is an integer of 1 to 4.In addition, a nonlinear optical material using the above Schiff base compound of formula (I) is disclosed.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: August 31, 1993
    Assignee: Ricoh Company, Ltd.
    Inventors: Masayuki Syoshi, Miwa Syutou