Patents by Inventor Masayuki Sudoh

Masayuki Sudoh 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).

  • Publication number: 20210231036
    Abstract: The present disclosure provides a muffler system that can effectively reduce exhaust noises. The muffler system includes an exhaust passage and a first muffler. The exhaust passage is configured to allow a flow of an exhaust gas. The first muffler is an expansion chamber muffler and disposed in the exhaust passage. The first muffler is situated upstream of a first position in a flow direction of the exhaust gas. The first position is located away from an upstream end of the exhaust passage by one third of an entire length of the exhaust passage.
    Type: Application
    Filed: January 8, 2021
    Publication date: July 29, 2021
    Inventors: Masahiro Kajikawa, Masaya Takeuchi, Masayuki Sudoh
  • Patent number: 9453452
    Abstract: A muffler comprises an outer shell, an outlet pipe, and a restraining mechanism. A restraining mechanism restrains a height of spout of a liquid that flows inside the outlet pipe through a designated vent hole, the designated vent hole is at least one vent hole facing against a bottom surface of the outer shell among the at least one vent hole that the outlet pipe comprises.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: September 27, 2016
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Seiji Kondo, Masahiro Kajikawa, Masayuki Sudoh
  • Patent number: 9416717
    Abstract: A muffler comprises an outer shell, an outlet pipe, and a restraining mechanism. A restraining mechanism restrains a height of spout of a liquid that flows inside the outlet pipe through a designated vent hole, the designated vent hole is at least one vent hole facing against a bottom surface of the outer shell among the at least one vent hole that the outlet pipe comprises.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: August 16, 2016
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Seiji Kondo, Masahiro Kajikawa, Masayuki Sudoh
  • Publication number: 20150192055
    Abstract: A muffler comprises an outer shell, an outlet pipe, and a restraining mechanism. A restraining mechanism restrains a height of spout of a liquid that flows inside the outlet pipe through a designated vent hole, the designated vent hole is at least one vent hole facing against a bottom surface of the outer shell among the at least one vent hole that the outlet pipe comprises.
    Type: Application
    Filed: August 28, 2013
    Publication date: July 9, 2015
    Inventors: Seiji Kondo, Masahiro Kajikawa, Masayuki Sudoh
  • Publication number: 20110215573
    Abstract: An exhaust pipe connection structure for interconnecting a connection pipe and an exhaust pipe that are arranged in an exhaust system of an, internal combustion engine. Either of the connection pipe or the exhaust pipe is inserted into the other, and the portion where the connection pipe and the exhaust pipe overlap each other is radially deformed and swaged.
    Type: Application
    Filed: August 1, 2008
    Publication date: September 8, 2011
    Applicant: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Yoshiki Tanaka, Kazunari Ohno, Masayuki Sudoh, Fumihiko Sato, Tetsuo Nakazawa
  • Publication number: 20110160252
    Abstract: First, the present inventors assessed the effect of the compound represented by formula (III) below on Huh-7 cells infected with HBV, and demonstrated that the compound alone had an anti-HBV effect in vitro. Formula (III) Then, the present inventors revealed that the HBV replication-suppressing effect of PEG-IFN is enhanced in chimeric mice having a human liver infected with genotype C or A HBV when PEG-IFN is used in combination with the compound represented by formula (III) above. The present inventors also revealed that the HBV replication-suppressing effect of Entecavir is enhanced in chimeric mice having a human liver infected with genotype C HBV (wild-type and Entecavir-resistant strains) when Entecavir is used in combination with the compound represented by formula (III) above.
    Type: Application
    Filed: June 18, 2009
    Publication date: June 30, 2011
    Inventors: Masashi Mizokami, Yasuhito Tanaka, Masaya Sugiyama, Masayuki Sudoh
  • Publication number: 20100274026
    Abstract: The object of the present invention is to provide a pharmaceutical composition for preventing or treating viral infectious diseases. The compounds of the present invention have extremely potent anti-HCV activity and HCV growth inhibitory effects, and since they also only demonstrate mild cytotoxicity in vivo, a pharmaceutical composition containing the compound of the present invention is extremely useful as an anti-HCV preventive/therapeutic agent.
    Type: Application
    Filed: July 6, 2010
    Publication date: October 28, 2010
    Inventors: Masahiro Aoki, Hideyuki Kato, Masayuki Sudoh, Takuo Tsukuda, Miyako Masubuchi, Kenichi Kawasaki
  • Patent number: 7776918
    Abstract: The object of the present invention is to provide a pharmaceutical composition for preventing or treating viral infectious diseases. The compounds of the present invention have extremely potent anti-HCV activity and HCV growth inhibitory effects, and since they also only demonstrate mild cytotoxicity in vivo, a pharmaceutical composition containing the compound of the present invention is extremely useful as an anti-HCV preventive/therapeutic agent.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: August 17, 2010
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Masahiro Aoki, Hideyuki Kato, Masayuki Sudoh, Takuo Tsukuda, Miyako Masubuchi, Kenichi Kawasaki
  • Patent number: 7378446
    Abstract: The object of the present invention is to provide a compound useful for the prevention and treatment of viral infectious diseases, and particularly liver diseases caused by HCV infection due to its having a high degree of replication inhibitory activity against HCV, its production method, an intermediate compound useful for its production and a pharmaceutical composition containing these compounds, and the present invention relates to a compound represented by the formula (I): (wherein A represents —(CH2)n—, etc.; B represents —(C?O)—, etc.; D represents —(CH2)m—R?, etc.; E represents a hydrogen atom, etc.; G represents —(CH2)p-J, etc.; bond Q represents a single bond or double bond; and R1, R2 and R3 may be the same or different and each represent a hydrogen atom, etc.), a prodrug thereof or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: May 27, 2008
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Masayuki Sudoh, Takuo Tsukuda, Miyako Masubuchi, Kenichi Kawasaki, Takeshi Murata, Fumio Watanabe, Hiroshi Fukuda, Susumu Komiyama, Tadakatsu Hayase
  • Publication number: 20060217434
    Abstract: The object of the present invention is to provide a pharmaceutical composition for preventing or treating viral infectious diseases. The compounds of the present invention have extremely potent anti-HCV activity and HCV growth inhibitory effects, and since they also only demonstrate mild cytotoxicity in vivo, a pharmaceutical composition containing the compound of the present invention is extremely useful as an anti-HCV preventive/therapeutic agent.
    Type: Application
    Filed: February 12, 2004
    Publication date: September 28, 2006
    Inventors: Masahiro Aoki, Hideyuki Kato, Masayuki Sudoh, Takuo Tsukuda, Miyako Masubuchi, Kenichi Kawasaki
  • Publication number: 20060194870
    Abstract: The object of the present invention is to provide a compound useful for the prevention and treatment of viral infectious diseases, and particularly liver diseases caused by HCV infection due to its having a high degree of replication inhibitory activity against HCV, its production method, an intermediate compound useful for its production and a pharmaceutical composition containing these compounds, and the present invention relates to a compound represented by the formula (I): (wherein A represents —(CH2)n—, etc.; B represents —(C?O)—, etc.; D represents —(CH2)m—R?, etc.; E represents a hydrogen atom, etc.; G represents —(CH2)p-J, etc.; bond Q represents a single bond or double bond; and R1, R2 and R3 may be the same or different and each represent a hydrogen atom, etc.), a prodrug thereof or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: July 9, 2004
    Publication date: August 31, 2006
    Inventors: Masayuki Sudoh, Takuo Tsukuda, Miyako Masubuchi, Kenichi Kawasaki, Takeshi Murata, Fumio Watanabe, Hiroshi Fukuda, Susumu Komiyama, Tadakatsu Hayase
  • Patent number: 3950671
    Abstract: A system for compensating for mislanding of electron beams on the screen of a color cathode ray tube as a result of thermal expansion of a beam selecting structure in the tube comprises electromagnetic devices provided on the tube for producing respective magnetic fields by means of a current supplied thereto so as to change the paths of the electron beams passing through the beam selecting structure, and a circuit for supplying to the electromagnetic devices a current varying in response to a difference between the temperature of the beam selecting structure and the ambient temperature about the tube.
    Type: Grant
    Filed: March 14, 1974
    Date of Patent: April 13, 1976
    Assignee: Sony Corporation
    Inventors: Koji Ichigaya, Hiromasa Machida, Masayuki Sudoh, Masami Mizuno, Yoriyoshi Awata