Patents by Inventor Yoichi Okamoto

Yoichi Okamoto 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: 9102028
    Abstract: A machine tool cooling system and cooling method which allow cost reduction by reducing the number of control valves, and in which opening/closing control is simple are disclosed. The machine tool cooling system and cooling method include a hot oil tank storing hot oil, a cold oil tank storing cold oil, a first to third hot oil passages and a first to third cold oil passages, which supply the hot oil and the cold oil to a first to third heat generating portions, a hot oil return passage returning the hot oil to the hot oil tank, a first to third supply control valves interposed in the first to third cold oil passages, and a valve controller controlling opening/closing of the first to third supply control valves so that the cold oil is supplied to the first to third heat generating portions intermittently at different timings.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: August 11, 2015
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Satoshi Miyamoto, Naoki Furukawa, Masahiro Oguma, Yusuke Ikeda, Yoichi Okamoto
  • Publication number: 20150101143
    Abstract: A dry cleaning casing of a dry cleaning apparatus includes a casing body including an internal space for flying a cleaning member, an opening to which a cleaning target is contacted to collide the cleaning member to the cleaning target, and an air introduction route to introduce external air to the internal space, by sucking air from the internal space while the opening is closed by the cleaning target, to generate rotating air flow for flying the cleaning member; a flow restriction member to define a rotation axis of the rotating air flow in the internal space; and a screen plate made of a porous plate to block movement of the cleaning member while passing through substance removed from the cleaning target.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 16, 2015
    Inventors: Yuusuke TANEDA, Akihiro FUCHIGAMI, Yoichi OKAMOTO, Shozo MURATA, Kohji TSUKAHARA
  • Patent number: 8994808
    Abstract: To provide a microscope system enabling the user to accurately observe the surface of the observing target in a short time. A sensitivity parameter for adjusting a value of the pixel data corresponding to a plurality of pixels is set. The pixel data is acquired with a first sensitivity value set as the sensitivity parameter, and the number of pixels in which the peak value of the pixel data is smaller than or equal to a threshold value is detected. A ratio of the detected number of pixels with respect to the total number of pixels region is calculated, where the pixel data is acquired by a second sensitivity value different from the first sensitivity value when the ratio is greater than or equal to a reference value, and the pixel data is not acquired by the second sensitivity value when the ratio is smaller than the reference value.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: March 31, 2015
    Assignee: Keyence Corporation
    Inventors: Yoichi Okamoto, Takuya Karube
  • Publication number: 20140366307
    Abstract: Disclosed is a dry cleaning device including a first cleaning unit that performs cleaning by generating a rotational air current inside a first housing having a first opening and by colliding cleaning media with a to-be-cleaned object that is attached to the first opening, the first cleaning unit being disposed at a first surface of the to-be-cleaned object; and a second cleaning unit that performs the cleaning by generating a second rotational air current inside a second housing having a second opening and by colliding second cleaning media with the to-be-cleaned object that is attached to the second opening, the second cleaning unit being disposed on a second surface of the to-be-cleaned object, so that the first opening and the second opening are facing each other, wherein the cleaning is performed from the first surface and second surfaces of the to-be-cleaned object.
    Type: Application
    Filed: December 26, 2012
    Publication date: December 18, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventors: Akihiro Fuchigami, Yuusuke Tanesda, Yoichi Okamoto, Shozo Murata, Kohji Tsukahara
  • Publication number: 20140340198
    Abstract: A package includes a package structure and a radio frequency identification tag. The package structure includes a metal film and a resin film, and the metal film includes a slit. The tag includes a first conductor to be attached at one side of the slit in a width direction of the slit, a second conductor to be attached at another side of the slit in the width direction of the slit, and an IC chip to receive power through the first conductor and the second conductor. The package structure includes a cutting line and the tag generates a communication failure when the package structure is cut along the cutting line. A radio frequency identification system includes the package and a communication management device configured to perform at least one of reading out information from the tag through wireless communication and writing information into the tag through the wireless communication.
    Type: Application
    Filed: May 14, 2014
    Publication date: November 20, 2014
    Inventors: Tsutomu KAWASE, Yoichi Okamoto
  • Publication number: 20140174774
    Abstract: A machine tool has a cover body with a window, the window including two spaced window plates defining an airtight space therebetween. The space is brought to a pressure other than atmospheric. An indicator is coupled to the cover body and has an indicator portion that is displaced in response to pressure in the space. The indicating portion is visually observable from outside the machine tool, so that the airtightness of the window may be determined by visually observing the position of the indicating portion.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 26, 2014
    Applicant: DMG MORI SEIKI CO., LTD.
    Inventors: Yoichi Okamoto, Eiichiro Gomi, Hiroki Nakao
  • Patent number: 8713750
    Abstract: A dry-type cleaning chassis includes a chassis part including an opening part in contact with a cleaning target, an air inlet duct provided to blow external air into the internal space; a suction port provided for generating a circulating air flow in the internal space by suctioning air having been introduced into the internal space via the air inlet duct; a porous unit configured to pass objects removed from the cleaning target to a suction port side; and a path limiting member formed of a cylindrical shape extended in an axis center direction of the circulating air flow and configured so that an inside of the cylindrical shape is in communication with the suction port as a suction path.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: May 6, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Akihiro Fuchigami, Yoichi Okamoto, Kohji Tsukahara, Shozo Murata, Yuusuke Taneda
  • Publication number: 20130326840
    Abstract: A dry-type cleaning chassis for cleaning a cleaning target by colliding the cleaning media with the cleaning target, the cleaning media being blown by an air flow includes an internal space where the cleaning media are to fly; an opening part being in contact with the cleaning target so that the cleaning media collide with the cleaning target; an air inlet duct introducing external air into the internal space; a suction port generating a first air flow caused by a circulating air flow in the internal space by suctioning the introduced external air; an injection port generating at least a second air flow increasing a speed of the cleaning media flown by the circulating air flow; and a porous unit passing objects removed from the cleaning target to a suction port side.
    Type: Application
    Filed: February 15, 2012
    Publication date: December 12, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventors: Akihiro Fuchigami, Yoichi Okamoto, Kohji Tsukahara, Shozo Murata, Yusuke Taneda
  • Patent number: 8584312
    Abstract: A cleaning apparatus for cleaning an object to be cleaned by allowing a cleaning medium caused to fly by an air flow to collide with the object to be cleaned is provided. The cleaning apparatus includes a cleaning tank in which the cleaning medium is caused to fly by the air flow and which has an opening to allow the object to be cleaned to pass through; a cleaning medium accelerating part provided at a bottom part of the cleaning tank and to inject the air flow to cause the cleaning medium to fly; a hollow elongated member having substantially the same inner diameter as a diameter of the opening, connected outside the opening, and configured to form a movement path for the object to be cleaned; and a cleaning medium returning part to return the cleaning medium stagnant in the hollow elongated member into the cleaning tank.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: November 19, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Akihiro Fuchigami, Tatsuya Satoh, Yoichi Okamoto, Yuusuke Taneda
  • Patent number: 8545637
    Abstract: A cleaning device (1) performs a cleaning of an article by blowing a cleaning medium (5) by an air stream onto the article (4). The cleaning device (1) includes a cleaning tank (6) that forms a space for the cleaning medium (5) to be blown, which includes an opening; a holding unit (3) that holds the article (4) at the opening; a pool member (19) that is arranged on an outer edge of the opening with a clearance between the pool member (19) and the article (4); and a cleaning-medium collecting unit (8) that brings the cleaning medium (5) leaked out of the outer edge and accumulated in the clearance back into the cleaning tank (6).
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: October 1, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Akihiro Fuchigami, Tatsuya Satoh, Yoichi Okamoto, Yuusuke Taneda
  • Publication number: 20130192018
    Abstract: A dry type cleaning case is for cleaning an object with a medium that flies by a revolving airflow. The dry type cleaning case includes a case unit and a leakage prevention unit. The case unit includes a space in which the medium flies, an opening that contacts the object so that the medium collides with the object, a ventilation path through which air flows into the space from outside, a suction opening that suctions the air that has been guided into the space through the ventilation path, to generate the revolving airflow in the space, and a porous unit through which a substance removed from the object is passed to the suction opening. The leakage prevention unit prevents the medium from leaking outside through the opening from the space, by causing outer air to flow in when the case unit is separated from the object.
    Type: Application
    Filed: October 26, 2011
    Publication date: August 1, 2013
    Applicant: RICOH COMPANY, LTD
    Inventors: Akihiro Fuchigami, Yoichi Okamoto, Kohji Tsukahara, Yuusuke Taneda, Shozo Murata
  • Publication number: 20130180552
    Abstract: A dry type cleaning housing which causes a cleaning medium to fly with an air flow and places the cleaning medium on a cleaning object to clean the cleaning object is disclosed. The dry type cleaning housing includes an inner space which causes the cleaning medium to fly; an opening which abuts the cleaning medium against the cleaning object to collide the cleaning medium with the cleaning object; a ventilation path which passes air from outside into the inner space; a suction opening which suctions the air introduced into the inner space via the ventilation path to generate a revolving air flow in the inner space; a porous unit which passes removed matter removed from the cleaning object to the suction opening side; and a revolving air flow adjusting unit which arbitrarily reduces or stops the revolving air flow.
    Type: Application
    Filed: December 6, 2012
    Publication date: July 18, 2013
    Inventors: Yuusuke Taneda, Yoichi Okamoto, Akihiro Fuchigami, Kohji Tsukahara, Shozo Murata
  • Publication number: 20130118525
    Abstract: A dry cleaning housing causes a cleaning medium to be scattered by an airflow and brings the cleaning medium into contact with a cleaning object to clean the cleaning object. The dry cleaning housing includes an internal space where the cleaning medium is scattered; an opening configured to be brought into contact with the cleaning object to cause the cleaning medium to collide with the cleaning object; a ventilation path configured to supply air from an outside to the internal space; a suction port configured to suction the air introduced into the internal space via the ventilation path to generate a rotating airflow inside the internal space; and a porous unit configured to allow a substance eliminated from the cleaning object to pass through.
    Type: Application
    Filed: July 29, 2011
    Publication date: May 16, 2013
    Inventors: Akihiro Fuchigami, Yoichi Okamoto, Kohji Tsukahara
  • Publication number: 20130104945
    Abstract: Provided is an anti-cleanser dispersing element for use in a dry washing device which disperses cleanser by an air stream to allow the cleanser to collide with an object for washing. The anti-cleanser dispersing element is disposed on a side of a holder of the object opposite to a side with which the cleanser collides. The anti-cleanser dispersing element is configured to be deformed by its own weight or pressure in accordance with an outer shape of the object, to tightly attach to the object with no gap and prevent the cleanser from moving to the opposite side of the holder.
    Type: Application
    Filed: October 25, 2012
    Publication date: May 2, 2013
    Inventors: Akihiro Fuchigami, Yoichi Okamoto, Yuusuke Taneda, Kohji Tsukahara, Shozo Murata
  • Publication number: 20120225613
    Abstract: A cleaning apparatus includes a cleaning tank having a space to contain flexible flake cleaning media, a cleaning target object holding unit holding a cleaning target object having adherent substances inside the cleaning tank, a gas flow generator unit generating a gas flow to move the cleaning media toward the cleaning target object such that the cleaning media contact the cleaning target object to remove the adherent substances from the cleaning target object, and an adherent substance collection unit moving the gas flow to collect the adherent substances removed from the cleaning target. A surface of the cleaning medium includes abrasive grains to remove the adherent substances from the cleaning target object by causing the surface of the cleaning medium having the abrasive grains to slide on the cleaning target object while the surface of the cleaning medium having the abrasive grains is in contact with the cleaning target object.
    Type: Application
    Filed: September 15, 2010
    Publication date: September 6, 2012
    Inventors: Akihiro Fuchigami, Yoichi Okamoto, Tatsuya Satoh
  • Publication number: 20120216363
    Abstract: A dry type cleaning case cleans a cleaning object by causing a cleaning medium to fly by an airflow and contact the cleaning object. The dry type cleaning case includes an internal space in which the cleaning medium is caused to fly; an opening that comes in contact with the cleaning object so that the cleaning medium collides with the cleaning object; a ventilation path through which air from outside is passed to the internal space; a suction opening configured to generate a revolving airflow in the internal space by suctioning the air that is guided into the internal space through the ventilation path; a porous unit configured to pass removed matter that is removed from the cleaning object to a side of the suction opening; and a humidifying unit configured to increase humidity in an area where the cleaning medium flies.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 30, 2012
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yoichi OKAMOTO, Akihiro Fuchigami, Kohji Tsukahara, Shozo Murata, Yusuke Taneda
  • Publication number: 20120188360
    Abstract: To provide a microscope system enabling the user to accurately observe the surface of the observing target in a short time. A sensitivity parameter for adjusting a value of the pixel data corresponding to a plurality of pixels is set. The pixel data is acquired with a first sensitivity value set as the sensitivity parameter, and the number of pixels in which the peak value of the pixel data is smaller than or equal to a threshold value is detected. A ratio of the detected number of pixels with respect to the total number of pixels region is calculated, where the pixel data is acquired by a second sensitivity value different from the first sensitivity value when the ratio is greater than or equal to a reference value, and the pixel data is not acquired by the second sensitivity value when the ratio is smaller than the reference value.
    Type: Application
    Filed: January 9, 2012
    Publication date: July 26, 2012
    Applicant: KEYENCE CORPORATION
    Inventors: Yoichi Okamoto, Takuya Karube
  • Publication number: 20120117749
    Abstract: A dry-type cleaning chassis includes a chassis part including an opening part in contact with a cleaning target, an air inlet duct provided to blow external air into the internal space; a suction port provided for generating a circulating air flow in the internal space by suctioning air having been introduced into the internal space via the air inlet duct; a porous unit configured to pass objects removed from the cleaning target to a suction port side; and a path limiting member formed of a cylindrical shape extended in an axis center direction of the circulating air flow and configured so that an inside of the cylindrical shape is in communication with the suction port as a suction path.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 17, 2012
    Applicant: RICOH COMPANY, LTD.
    Inventors: Akihiro FUCHIGAMI, Yoichi Okamoto, Kohji Tsukahara, Shozo Murata, Yuusuke Taneda
  • Publication number: 20110154835
    Abstract: There are provided a machine tool cooling system and cooling method which allow cost reduction by reducing the number of control valves, and in which opening/closing control is simple. The machine tool cooling system and cooling method include a hot oil tank 4 storing hot oil, a cold oil tank 5 storing cold oil, a first to third hot oil passages 9a to 9c and a first to third cold oil passages 10a to 10c, which supply the hot oil and the cold oil to a first to third heat generating portions 1 to 3, a hot oil return passage 11 returning the hot oil to the hot oil tank 4, a first to third supply control valves 16a to 16c interposed in the first to third cold oil passages 10a to 10c, and a valve controller 8 controlling opening/closing of the first to third supply control valves 16a to 16c so that the cold oil is supplied to the first to third heat generating portions 1 to 3 intermittently at different timings.
    Type: Application
    Filed: November 8, 2010
    Publication date: June 30, 2011
    Inventors: Satoshi Miyamoto, Naoki Furukawa, Masahiro Oguma, Yusuke Ikeda, Yoichi Okamoto
  • Publication number: 20110067731
    Abstract: A cleaning device for removing a deposit adhering to an object to be cleaned is disclosed. The cleaning device includes a cleaning chamber forming a space for housing multiple cleaning media shaped like flakes; a circulating air-flow generating unit configured to generate a circulating air flow to cause the cleaning media to fly and repeatedly collide with the object in the cleaning chamber and thereby to remove the deposit adhering to the object; and a cleaning medium recycling unit configured to suction and remove the deposit adhering to the cleaning media that have collided with the object and thereby to recycle the cleaning media. The pencil hardness of the cleaning media is greater than the pencil hardness of the deposit.
    Type: Application
    Filed: June 30, 2009
    Publication date: March 24, 2011
    Inventors: Tatsuya Satoh, Yoichi Okamoto, Akihiro Fuchigami, Yuusuke Taneda