Patents by Inventor Hitoshi Karasawa
Hitoshi Karasawa 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).
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Patent number: 8517927Abstract: A medical instrument includes: an image pickup unit incorporated in a medical instrument body for picking up an image of the subject to be examined from an observation window; an airflow generating unit provided rotatably with respect to the medical instrument body so as to cover the image pickup unit by a covering unit having an opening formed therein, the airflow generating unit being configured to generate an airflow for preventing adherents from sticking to the observation window, by rotation of the covering unit; a fixing unit for indwelling and fixing the medical instrument body inside the subject to be examined; and a drive unit incorporated in the medical instrument body, for driving the airflow generation unit.Type: GrantFiled: July 23, 2010Date of Patent: August 27, 2013Assignee: Olympus Medical Systems Corp.Inventors: Daisuke Asada, Sho Nakajima, Hitoshi Karasawa
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Patent number: 8475359Abstract: A medical apparatus according to the present invention is a medical apparatus used in a state in which the medical apparatus is led into a body and fixed. The medical apparatus includes: a fixing section that fixes the medical apparatus on a body wall in the body; an image pickup section that picks up an image of a subject in the body and is provided pivotably around a first axis; and a holding section that includes the fixing section and holds the image pickup section pivotably around a second axis different from the first axis. Therefore, the medical apparatus can change a photographing range and a visual field direction as desired to photograph the subject by performing magnified observation and photographing the subject from different directions without using a zoom function in the state in which the medical apparatus is fixed in a limited space in the body.Type: GrantFiled: September 21, 2009Date of Patent: July 2, 2013Assignee: Olympus Medical Systems Corp.Inventors: Daisuke Asada, Hitoshi Karasawa, Sho Nakajima, Nobuyoshi Yazawa, Tsutomu Urakawa
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Patent number: 8353820Abstract: A medical apparatus according to the present invention includes: an image pickup section including an observation window, the image pickup section being led into a body; a holding section that holds the image pickup section inside the body; a covering section that is connected to the holding section and covers the observation window to set the image pickup section in a non-photographable state; and a field-of-view control section that variably controls the covering of the observation window by the covering section and sets the image pickup section in a photographable state to allow the image pickup section to photograph a subject inside the body.Type: GrantFiled: August 5, 2009Date of Patent: January 15, 2013Assignee: Olympus Medical Systems Corp.Inventors: Hitoshi Karasawa, Sho Nakajima, Daisuke Asada, Nobuyoshi Yazawa
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Patent number: 8317814Abstract: A medical device includes: a medical instrument introduced into a body cavity and having a contact portion that is fixed in contact with a wall within a body, and a wire; an extracorporeal device installed on a body surface and having a hole portion through which the wire can be inserted and removed, fixing mechanisms for fixing the wire inserted through the hole portion, and a housing that is fixed in contact with the body surface; and a pressure adjusting portion provided in one of the medical instrument and the extracorporeal device for maintaining a predetermined tensile force or more that is applied to the wire when the wire is fixed by the fixing mechanism with a body wall being sandwiched between the contact portion and the housing.Type: GrantFiled: January 7, 2009Date of Patent: November 27, 2012Assignee: Olympus Medical Systems Corp.Inventors: Hitoshi Karasawa, Sho Nakajima, Daisuke Asada, Keiji Handa
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Patent number: 8267854Abstract: An endoscope system includes a camera for picking up an image inside a body cavity, a camera side magnet connected to the camera and a fixing magnet, for fixing the camera inside the body cavity by holding an abdominal wall from different surfaces of the abdominal wall, and a second CCU for controlling the camera.Type: GrantFiled: June 4, 2008Date of Patent: September 18, 2012Assignee: Olympus Medical Systems Corp.Inventors: Daisuke Asada, Keiji Handa, Hitoshi Karasawa
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Patent number: 8237782Abstract: A medical instrument used by being introduced into a body and fixed thereto, includes a camera body provided with a fixing section to be fixed to a body wall in the body, an image pickup section incorporated in the camera body that picks up an image of an object to be examined in the body from an observation window formed in the camera body, a contamination removing section provided by being fixed to the camera body, a transparent cover member, an outer surface of which is in contact with the contamination removing section, movably disposed on the observation window and a drive section incorporated in the camera body that drives the cover member to make a sliding contact with the contamination removing section, and can thereby easily and reliably remove deposits stuck to the observation window and obtain a clear observation image even when deposits are being removed.Type: GrantFiled: March 8, 2010Date of Patent: August 7, 2012Assignee: Olympus Medical Systems Corp.Inventors: Hitoshi Karasawa, Sho Nakajima, Daisuke Asada, Nobuyoshi Yazawa
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Publication number: 20120137970Abstract: Provided is a device for treating the inner surface of a cylinder barrel. A cover member (32) is provided, at the lower surface (59) thereof, with seal rings (54, 55, 56). The seal rings (54, 55, 56) are disposed concentrically about the center axis (63) of a cylinder barrel (43, 67). The lower ends of the seal rings (54, 55, 56) are disposed at different levels of height in such a manner that the farther away from the center axis (63), the higher the positions of the lower ends relative to the seal ring (54) closest to the center axis (63).Type: ApplicationFiled: July 1, 2010Publication date: June 7, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Hiroyuki Naruse, Hitoshi Karasawa, Kenichi Yokoo
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Patent number: 8182414Abstract: An endoscope system having a first image pickup device including at least one image pickup unit that is capable of picking up an image of an object, a second image pickup device including at least one image pickup unit, the second image pickup device being different from the first image pickup device, a retaining member being provided for retaining the second image pickup device in a body cavity, and including a camera cable that is connected to the second image pickup device and transmits an image pickup signal obtained by the second image pickup device, and a wire connected to the second image pickup device, a signal processing device that is provided outside the body cavity and processes image pickup signals obtained by the first image pickup device and the second image pickup device, and a display device that displays an image signal outputted from the signal processing device.Type: GrantFiled: June 4, 2008Date of Patent: May 22, 2012Assignee: Olympus Medical Systems Corp.Inventors: Keiji Handa, Hitoshi Karasawa, Daisuke Asada
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Patent number: 8088065Abstract: A medical instrument includes an image pickup section incorporated in a medical instrument body and movably provided in the medical instrument body that picks up an image of the object to be examined from an observation window, a covering section movably provided at the medical instrument body so as to cover the observation window and in which an opening portion is formed, a drive section that drives the covering section or the image pickup section, and a control section that controls the drive section so as to drive the covering section or the image pickup section by synchronizing a timing for the image pickup section to pick up the object image with a timing at which the opening portion and the observation window match, and can thereby prevent sticking of deposits to the observation window and obtain a clear observation image.Type: GrantFiled: March 19, 2010Date of Patent: January 3, 2012Assignee: Olympus Medical Systems Corp.Inventors: Hitoshi Karasawa, Daisuke Asada, Sho Nakajima
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Patent number: 7966897Abstract: A plating apparatus includes a plating tank for storing a plating liquid, and applies a magnetic alloy plating to a shaft-shaped member immersed in the plating liquid by using the shaft-shaped member as a cathode. The plating apparatus further includes a rotable member configured to rotate the shaft-shaped member as a rotary shaft; annular shielding tools mounted on the outer peripheral surface of the shaft-shaped member; a plating liquid discharge nozzle including plating liquid discharge ports which are provided to face the shaft-shaped member so as to avoid the shielding tools; and an anode provided around the shaft-shaped member and the plating liquid discharge nozzle.Type: GrantFiled: August 22, 2007Date of Patent: June 28, 2011Assignee: Honda Motor Co., Ltd.Inventors: Nobuhiko Yoshimoto, Hitoshi Karasawa, Koji Kobayashi, Mizuho Doi, Hitoshi Harata
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Publication number: 20110046445Abstract: A medical instrument for observing the interior of a subject to be examined has an image pickup unit for picking up an image of the subject to be examined from a transparent cover member incorporated in the medical instrument, disposes a multi-bladed fan outside an image-pickup field of view of the image pickup unit, generates an airflow to an airflow outlet that causes the airflow to flow from the inlet port to the vicinity of an observation window, prevents adherents such as dirt from sticking to the cover member, prevents the adherents from sticking to the observation window of the observation apparatus without obstructing the field of view, and can thereby obtain a clear observed image.Type: ApplicationFiled: July 23, 2010Publication date: February 24, 2011Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Daisuke ASADA, Sho NAKAJIMA, Hitoshi KARASAWA
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Publication number: 20110031219Abstract: A cylinder barrel inside surface treatment apparatus for providing a uniform treatment finish is disclosed. The treatment apparatus includes a pallet on which a cylinder block is placed with a gasket surface faced upward. A top opening of a cylinder barrel of the cylinder block is covered by a cover member having a concave portion communicating with the top opening. A nozzle having treatment solution spray holes is attached to the cover member. The treatment solution is sprayed toward a wall of the concave portion from the treatment solution spray holes and flows along the wall from a top end to a bottom end of the cylinder barrel inside surface.Type: ApplicationFiled: August 5, 2010Publication date: February 10, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Hiroyuki NARUSE, Hitoshi Karasawa, Ryotaro Takada, Yoshimitsu Ogawa
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Publication number: 20100249502Abstract: A medical instrument includes an image pickup section incorporated in a medical instrument body and movably provided in the medical instrument body that picks up an image of the object to be examined from an observation window, a covering section movably provided at the medical instrument body so as to cover the observation window and in which an opening portion is formed, a drive section that drives the covering section or the image pickup section, and a control section that controls the drive section so as to drive the covering section or the image pickup section by synchronizing a timing for the image pickup section to pick up the object image with a timing at which the opening portion and the observation window match, and can thereby prevent sticking of deposits to the observation window and obtain a clear observation image.Type: ApplicationFiled: March 19, 2010Publication date: September 30, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Hitoshi KARASAWA, Daisuke ASADA, Sho NAKAJIMA
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Publication number: 20100249503Abstract: By including a camera body introduced into a body, an image pickup section incorporated in the camera body for picking up an image of an object, a transparent cover member movably disposed at the camera body that always covers an image taking side of the image pickup section irrespective of a moving position, a moving section that causes the cover member to move and a cleaning section disposed outside an image pickup range of the image pickup section that performs cleaning by jetting a fluid over the opposed surface part of the cover member moved to outside the image pickup range of the image pickup section, it is possible to always obtain a clear observation image without interfering with observation even when removing fogging, deposits such as dirt.Type: ApplicationFiled: March 19, 2010Publication date: September 30, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Nobuyoshi YAZAWA, Daisuke ASADA, Sho NAKAJIMA, Hitoshi KARASAWA
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Publication number: 20100225754Abstract: A medical instrument according to the present invention is a medical instrument used by being introduced into the body and fixed therein, which includes a fixing section fixed to a body wall in the body, an image pickup section that picks up an image of an object to be examined in the body, an illumination section that illuminates the object to be examined in the body and a sheet body in which the illumination section is disposed and which is made unfoldable so as to spread with respect to the image pickup section so that an illumination region of illumination light is expanded in an image pickup region of the image pickup section and a wide range is irradiated with the illumination light, and can thereby irradiate the object to be examined whose images are taken with illumination light of sufficient brightness and luminous intensity distribution.Type: ApplicationFiled: March 8, 2010Publication date: September 9, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Nobuyoshi Yazawa, Hitoshi Karasawa, Daisuke Asada, Sho Nakajima, Tsutomu Urakawa
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Publication number: 20100225753Abstract: A medical instrument used by being introduced into a body and fixed thereto, includes a camera body provided with a fixing section to be fixed to a body wall in the body, an image pickup section incorporated in the camera body that picks up an image of an object to be examined in the body from an observation window formed in the camera body, a contamination removing section provided by being fixed to the camera body, a transparent cover member, an outer surface of which is in contact with the contamination removing section, movably disposed on the observation window and a drive section incorporated in the camera body that drives the cover member to make a sliding contact with the contamination removing section, and can thereby easily and reliably remove deposits stuck to the observation window and obtain a clear observation image even when deposits are being removed.Type: ApplicationFiled: March 8, 2010Publication date: September 9, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Hitoshi Karasawa, Sho Nakajima, Daisuke Asada, Nobuyoshi Yazawa
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Publication number: 20100113872Abstract: A medical apparatus includes a medical instrument that is introduced into a body cavity and has a driven posture control portion; a fixing portion for fixing the medical instrument to a body wall inside a body cavity; a movable portion that is interposed between the medical instrument and the fixing portion and movably connects the medical instrument to the fixing portion; and an extracorporeal device that is installed outside the body and has a posture control portion that moves the medical instrument relative to the fixing portion.Type: ApplicationFiled: January 11, 2010Publication date: May 6, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Daisuke ASADA, Hitoshi KARASAWA, Keiji HANDA, Sho NAKAJIMA
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Publication number: 20100076259Abstract: A medical apparatus according to the present invention is a medical apparatus used in a state in which the medical apparatus is led into a body and fixed. The medical apparatus includes: a fixing section that fixes the medical apparatus on a body wall in the body; an image pickup section that picks up an image of a subject in the body and is provided pivotably around a first axis; and a holding section that includes the fixing section and holds the image pickup section pivotably around a second axis different from the first axis. Therefore, the medical apparatus can change a photographing range and a visual field direction as desired to photograph the subject by performing magnified observation and photographing the subject from different directions without using a zoom function in the state in which the medical apparatus is fixed in a limited space in the body.Type: ApplicationFiled: September 21, 2009Publication date: March 25, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Daisuke Asada, Hitoshi Karasawa, Sho Nakajima, Nobuyoshi Yazawa, Tsutomu Urakawa
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Patent number: 7677115Abstract: A magnetostrictive torque sensor having a rotating shaft on which at least one magnetostrictive film is formed, and has such a structure that the rotating shaft has small diameter portions and large diameter portions positioned on both end sides of the small diameter portions, and a length in an axial direction of the small diameter portion is determined in relation to a coil width of an induction heating coil to be used at a high frequency heating step and one magnetostrictive film is formed in the small diameter portion.Type: GrantFiled: March 16, 2007Date of Patent: March 16, 2010Assignee: Honda Motor Co., Ltd.Inventors: Yuichi Fukuda, Nobuhiko Yoshimoto, Hitoshi Karasawa, Tomohiro Hoshi
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Publication number: 20100036199Abstract: A medical apparatus according to the present invention includes: an image pickup section including an observation window, the image pickup section being led into a body; a holding section that holds the image pickup section inside the body; a covering section that is connected to the holding section and covers the observation window to set the image pickup section in a non-photographable state; and a field-of-view control section that variably controls the covering of the observation window by the covering section and sets the image pickup section in a photographable state to allow the image pickup section to photograph a subject inside the body.Type: ApplicationFiled: August 5, 2009Publication date: February 11, 2010Applicant: OLYMPUS MEDICAL SYSTEMS CORP.Inventors: Hitoshi KARASAWA, Sho NAKAJIMA, Daisuke ASADA, Nobuyoshi YAZAWA