Patents by Inventor Hiroshi Tsujita

Hiroshi Tsujita 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).

  • COSMETIC
    Publication number: 20170027827
    Abstract: The inventors have investigated a fluorescent substance being safe and having a high color developing property, and it is one of objects of the present disclosure to obtain an inorganic red fluorescent substance consisting of an element which exerts no bad influence upon human bodies. A cosmetic containing inorganic particles consisting of a compound represented by a general formula: CaxAlyO(2x+3y+4z)/2:Mn4+z wherein 0.1<x<1.05, 11.9<y?12, and 0.0005<z<0.1.
    Type: Application
    Filed: April 27, 2015
    Publication date: February 2, 2017
    Inventors: Mayu OTA, Hiroshi TSUJITA, Kenji MORI, Keita KOBAYASHI
  • Aza metal complexes
    Patent number: 9115153
    Abstract: A core of a cyclic structure represented by (—N—(CH2)n—)k is bonded to a dendrimer-type side chain with a specific branched structure at all nitrogen atoms in the core to produce a compound with a specific structure for producing a metal complex that exhibits a T1-reducing effect, and the resulting compound is coordinated to a metal ion that has a T1-reducing effect to obtain a metal complex that exhibits an excellent T1-reducing effect which is useful as an effective component of an MRI contrast agent and an MRI contrast agent using the same.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: August 25, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Teruyuki Kondo, Hiroshi Tsujita, Zainul Abedin Siddique, Shingo Matsuki, Hiroki Miura, Hidehito Tochio, Tetsuya Matsuda, Michiko Narazaki, Hidetoshi Tsuzuki, Katsuaki Kuge, Yoshinori Tomida, Kimihiro Yoshimura, Tetsuya Yano
  • Aza metal complexes
    Publication number: 20140275521
    Abstract: A core of a cyclic structure represented by (—N—(CH2)n—)k is bonded to a dendrimer-type side chain with a specific branched structure at all nitrogen atoms in the core to produce a compound with a specific structure for producing a metal complex that exhibits a T1-reducing effect, and the resulting compound is coordinated to a metal ion that has a T1-reducing effect to obtain a metal complex that exhibits an excellent T1-reducing effect which is useful as an effective component of an MRI contrast agent and an MRI contrast agent using the same.
    Type: Application
    Filed: May 28, 2014
    Publication date: September 18, 2014
    Applicant: Canon Kabushiki Kaisha
    Inventors: Teruyuki Kondo, Hiroshi Tsujita, Zainul Abedin Siddique, Shingo Matsuki, Hiroki Miura, Hidehito Tochio, Tetsuya Matsuda, Michiko Narazaki, Hidetoshi Tsuzuki, Katsuaki Kuge, Yoshinori Tomida, Kimihiro Yoshimura, Tetsuya Yano
  • AZA compounds and production method thereof, and metal complexes as MRI contrast agents
    Patent number: 8772475
    Abstract: A core of a cyclic structure represented by (—N—(CH2)n—)k is bonded to a dendrimer-type side chain with a specific branched structure at all nitrogen atoms in the core to produce a compound with a specific structure for producing a metal complex that exhibits a T1-reducing effect, and the resulting compound is coordinated to a metal ion that has a T1-reducing effect to obtain a metal complex that exhibits an excellent T1-reducing effect which is useful as an effective component of an MRI contrast agent and an MRI contrast agent using the same.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: July 8, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Teruyuki Kondo, Hiroshi Tsujita, Zainul Abedin Siddique, Shingo Matsuki, Hiroki Miura, Hidehito Tochio, Tetsuya Matsuda, Michiko Narazaki, Hidetoshi Tsuzuki, Katsuaki Kuge, Yoshinori Tomida, Kimihiro Yoshimura, Tetsuya Yano
  • AZA COMPOUNDS AND PRODUCTION METHOD THEREOF, AND METAL COMPLEXES AS MRI CONTRAST AGENTS
    Publication number: 20110028713
    Abstract: A core of a cyclic structure represented by (—N—(CH2)n—)k is bonded to a dendrimer-type side chain with a specific branched structure at all nitrogen atoms in the core to produce a compound with a specific structure for producing a metal complex that exhibits a T1-reducing effect, and the resulting compound is coordinated to a metal ion that has a T1-reducing effect to obtain a metal complex that exhibits an excellent T1-reducing effect which is useful as an effective component of an MRI contrast agent and an MRI contrast agent using the same.
    Type: Application
    Filed: November 28, 2008
    Publication date: February 3, 2011
    Applicants: KYOTO UNIVERSITY, CANON KABUSHIKI KAISHA
    Inventors: Teruyuki Kondo, Hiroshi Tsujita, Zainul Abedin Siddique, Shingo Matsuki, Hiroki Miura, Hidehito Tochio, Tetsuya Matsuda, Michiko Narazaki, Hidetoshi Tsuzuki, Katsuaki Kuge, Yoshinori Tomida, Kimihiro Yoshimura, Tetsuya Yano