Patents by Inventor Masato Suwa

Masato Suwa 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: 6187783
    Abstract: A novel phenanthridinium derivative represented by general formula (A): wherein R1 is a substituted or unsubstituted lower aliphatic hydrocarbon group; R is an aliphatic hydrocarbon chain having 2 to 6 carbon atoms which may optionally be substituted with a substituent selected from the group consisting of a lower alkyl group, a halogen and a hydroxy group; each of Y and Z independently represents a hydrogen, a hydroxy or a lower alkoxy group; or Y and Z are combined together to form methylenedioxy or a phenyl ring; and, X− is an acid residue or a hydrogen acid residue, exhibits an antitumor activity and has resistance to chemical reduction as well as biological metabolic reactions and is thus advantageous for use as a medicine.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: February 13, 2001
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Akira Masuda, Masato Suwa, Masanobu Suzuki
  • Patent number: 5920481
    Abstract: An IC package processing and measuring system comprises: a processing and measuring device that executes processing or measurement on a prescribed number of IC packages juxtaposed in a prescribed area; a feed device that feeds IC packages into the prescribed area, a prescribed number at a time, by feeding with a prescribed feed pitch an IC package support on which are loaded a plurality of juxtaposed IC packages; and a control device that controls the processing and measuring device and feed device. The control device comprises position calculating means that uses shape data of the IC package and IC package support to calculate target positions of processing and measurement of the IC packages in the prescribed area and outputs the calculated position data to the processing and measuring device.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: July 6, 1999
    Assignee: Komatsu Ltd.
    Inventors: Masashi Ichihara, Yoshinori Saito, Masato Suwa, Yukihiro Tsuda, Hitoshi Kitamura