Patents by Inventor Yoshitaka Hasegawa

Yoshitaka Hasegawa 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: 6878284
    Abstract: A method of treating water containing a nitrogen compound, and an apparatus of treating water containing a nitrogen compound at high speed without using a biologically unstable treatment causing eutrophication in lakes and swamps. The waste water is introduced into an adsorbing tank that is filled with a zeolite, only nitrogen components are adsorbed by the zeolite, a solution containing hypochlorous acid or hypobromous acid is introduced into the adsorbing tank, and the nitrogen adsorbed in the zeolite is decomposed by the hypochlorous acid or the hypobromous acid.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: April 12, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yoshitaka Hasegawa, Brahim Messaoudi, Toshiyuki Kamiya, Junji Hirotsuji
  • Publication number: 20040007533
    Abstract: A method of treating a nitrogen compound-containing water, and an apparatus of treating a nitrogen compound-containing water realize such a method and an apparatus of treating nitrogen in a waste water at a high speed without using an unstable biological treatment; the nitrogen being a substance causing eutrophication in lakes and swamps. The waste water containing nitrogen is introduced into an adsorbing tank that is filled with zeolite, only nitrogen components are adsorbed to the zeolite, a solution containing hypochlorous acid or hypobromous acid is introduced into the adsorbing tank, and the nitrogen adsorbed to the zeolite is decomposed by the hypochlorous acid or the hypobromous acid.
    Type: Application
    Filed: April 11, 2003
    Publication date: January 15, 2004
    Inventors: Yoshitaka Hasegawa, Brahim Messaoudi, Toshiyuki Kamiya, Junji Hirotsuji
  • Patent number: 6422247
    Abstract: A pod for storing and carrying substrates consists of a pod body and a cover. An inlet and an outlet are formed on one of the pod body and cover. The cover is tightly fitted to the pod body to close the inside of the pod body. A washing liquid is introduced into the pod through the inlet and is discharged from the pod through the outlet, thereby easily washing the inside of the pod with the pod itself serving as a washing tank. A washing cover has an inlet, an outlet, and a heater. The washing cover is attached to the pod body when washing the inside of the pod body. Further provided is a cleaning apparatus having pipes and a pump that are connected to the washing cover. The cleaning apparatus may have a table serving as the washing cover. The table is connected to pipes and a pump.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: July 23, 2002
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Noriaki Yoshikawa, Tadashi Yotsumoto, Terumi Muguruma, Yoshitaka Hasegawa, Yuichi Kuroda
  • Publication number: 20010020480
    Abstract: A pod for storing and carrying substrates consists of a pod body and a cover. An inlet and an outlet are formed on one of the pod body and cover. The cover is tightly fitted to the pod body to close the inside of the pod body. A washing liquid is introduced into the pod through the inlet and is discharged from the pod through the outlet, thereby easily washing the inside of the pod with the pod itself serving as a washing tank. A washing cover has an inlet, an outlet, and a heater. The washing cover is attached to the pod body when washing the inside of the pod body. Further provided is a cleaning apparatus having pipes and a pump that are connected to the washing cover. The cleaning apparatus may have a table serving as the washing cover. The table is connected to pipes and a pump.
    Type: Application
    Filed: May 21, 2001
    Publication date: September 13, 2001
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Noriaki Yoshikawa, Tadashi Yotsumoto, Terumi Muguruma, Yoshitaka Hasegawa, Yuichi Kuroda
  • Patent number: 6267123
    Abstract: A pod for storing and carrying substrates consists of a pod body and a cover. An inlet and an outlet are formed on one of the pod body and cover. The cover is tightly fitted to the pod body to close the inside of the pod body. A washing liquid is introduced into the pod through the inlet and is discharged from the pod through the outlet, thereby easily washing the inside of the pod with the pod itself serving as a washing tank. A washing cover has an inlet, an outlet, and a heater. The washing cover is attached to the pod body when washing the inside of the pod body. Further provided is a cleaning apparatus having pipes and a pump that are connected to the washing cover. The cleaning apparatus may have a table serving as the washing cover. The table is connected to pipes and a pump.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: July 31, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Noriaki Yoshikawa, Tadashi Yotsumoto, Terumi Muguruma, Yoshitaka Hasegawa, Yuichi Kuroda
  • Patent number: D806412
    Type: Grant
    Filed: August 3, 2016
    Date of Patent: January 2, 2018
    Assignee: Hasegawa Kogyo Co., Ltd.
    Inventors: Yoshitaka Hasegawa, Michiaki Sugiki