Patents by Inventor Kunihito Suzuki
Kunihito Suzuki 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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Publication number: 20140183966Abstract: An object of the present invention is to provide an inductive power supply system for an electric operation machine capable of readily increasing an allowable amount of a positional displacement between primary and secondary coils. An inductive power supply system for an electric operation machine having an electric storage device and a power receiver includes a power feeder provided with a pair of primary coils connected in series circuit to generate a magnetic dipole at energization. The power receiver has a secondary coil interlinkable to a magnetic flux generated by the primary coils and at the energization of the primary coils.Type: ApplicationFiled: December 23, 2013Publication date: July 3, 2014Applicant: Hitachi Power Solutions Co., Ltd.Inventors: Kunihito SUZUKI, Fumihiko GOTO, Junki SAGAWA
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Patent number: 7432712Abstract: The present invention relates to a magnetic resonance imaging apparatus, which includes a apparatus bottom surface, a static magnetic field generator, two pieces of which are placed opposite each other vertically across an image pickup space, and a plurality of support legs for supporting a weight of the resonance imaging apparatus, the support legs being elastically deformed in a direction in which the weight is to be applied, and being arranged between the apparatus bottom surface and a floor. Furthermore, each of the support legs has a spring constant which is set to absorb a displacement between the apparatus bottom surface and the floor, while bearing the weight. This MRI apparatus has the simple structure enabling the efficient damping of the vibrations which may cause the deterioration of magnetic resonance images.Type: GrantFiled: February 20, 2007Date of Patent: October 7, 2008Assignee: Hitachi, Ltd.Inventors: Hirofumi Motoshiromizu, Kunihito Suzuki
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Patent number: 7307421Abstract: An MRI apparatus having a configuration that reduces vibration of a static magnetic field generating source is provided. A closed vessel 2 of the static magnetic field generating source is provided with a rigid structure 4 for preventing transmission of vibration generated from a gradient magnetic field generating part 21 to other members via the closed vessel 2. The rigid structure 4 uses, for example, a connecting part 4 that connects a face 25 on the imaging space side and a face 26 confronting it. The rigidity of the closed vessel is thereby increased, and therefore vibration transmitted from the gradient magnetic field generating part can be reduced. The connecting part can have a through-hole structure, and in such a case, internal space of through-hole can be used for drawing cables.Type: GrantFiled: April 22, 2004Date of Patent: December 11, 2007Assignees: Hitachi Medical Corporation, Hitachi Ltd., Hitachi Engineering Co., Ltd.Inventors: Akira Kurome, Kenji Sakakibara, Hirotaka Takeshima, Takeshi Yatsuo, Hiroyuki Watanabe, Yoshihide Wadayama, Hirofumi Motoshiromizu, Kunihito Suzuki
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Patent number: 7276908Abstract: In the MRI apparatus of the present invention, a reinforcing member is firmly provided so as to enhance the rigidity strength of two connecting tubes connecting upper and lower cryostats, thereby suppression of vibration caused by a gradient magnetic field coil and suppression of variation of static magnetic field can be realized. Further, in the MRI apparatus of the present invention, the reinforcing member is provided in upper and lower portions of the connecting tubes of the vacuum vessels, thereby suppression of vibration caused by the gradient magnetic field coil and suppression of variation of static magnetic field can be realized. Further, in the MRI apparatus of the present invention, the reinforcing member is provided in upper and lower parts of the vacuum vessels, thereby suppression of vibration caused by the gradient magnetic field coil and suppression of variation of static magnetic field can be realized.Type: GrantFiled: June 23, 2005Date of Patent: October 2, 2007Assignees: Hitachi, Ltd., Hitachi Medical Corporation, Hitachi Engineering Co., Ltd.Inventors: Kunihito Suzuki, Hirofumi Motoshiromizu, Kunihiro Takayama, Yoshihide Wadayama, Akira Kurome, Shin Hoshino
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Publication number: 20070210795Abstract: The present invention relates to a magnetic resonance imaging apparatus, which includes a floor surface, a static magnetic field generator, two pieces of which are placed opposite each other vertically across an image pickup space, and a plurality of support legs for supporting a weight of the resonance imaging apparatus, the support legs being elastically deformed in a direction in which the weight is to be applied, and being arranged between the floor surface and a floor. Furthermore, each of the support legs has a spring constant which is set to absorb a displacement between the floor surface and the floor, while bearing the weight. This MRI apparatus has the simple structure enabling the efficient damping of the vibrations which may cause the deterioration of magnetic resonance images.Type: ApplicationFiled: February 20, 2007Publication date: September 13, 2007Inventors: Hirofumi MOTOSHIROMIZU, Kunihito Suzuki
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Publication number: 20060220646Abstract: An MRI apparatus having a configuration that reduces vibration of a static magnetic field generating source is provided. A closed vessel 2 of the static magnetic field generating source is provided with a rigid structure 4 for preventing transmission of vibration generated from a gradient magnetic field generating part 21 to other members via the closed vessel 2. The rigid structure 4 uses, for example, a connecting part 4 that connects a face 25 on the imaging space side and a face 26 confronting it. The rigidity of the closed vessel is thereby increased, and therefore vibration transmitted from the gradient magnetic field generating part can be reduced. The connecting part can have a through-hole structure, and in such a case, internal space of through-hole can be used for drawing cables.Type: ApplicationFiled: April 22, 2004Publication date: October 5, 2006Inventors: Akira Kurome, Kenji Sakakibara, Hirotaka Takeshima, Takeshi Yatsuo, Hiroyuki Watanabe, Yoshihide Wadayama, Hirofumi Motoshiromizu, Kunihito Suzuki
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Patent number: 7112966Abstract: The MRI apparatus has ring-shaped superconducting coils arranged to vertically oppose each other. The superconducting coils are installed in ring-shaped cooling containers. The cooling containers are accommodated in radiation shield plates. The radiation shield plates are accommodated in vacuum vessels. The cooling containers are connected together at at least two locations. Support members are arranged between an outer wall surface of the lower cooling container and an inner wall surface of the lower vacuum vessel to support the lower cooling container on the lower vacuum vessel. The upper cooling container is free, supported only by the connecting tubes connecting the upper and lower cooling containers.Type: GrantFiled: October 15, 2004Date of Patent: September 26, 2006Assignee: Hitachi, Ltd.Inventors: Hirofumi Motoshiromizu, Kunihito Suzuki, Hiroyuki Watanabe
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Publication number: 20050285596Abstract: In the MRI apparatus of the present invention, a reinforcing member is firmly provided so as to enhance the rigidity strength of two connecting tubes connecting upper and lower cryostats, thereby suppression of vibration caused by a gradient magnetic field coil and suppression of variation of static magnetic field can be realized. Further, in the MRI apparatus of the present invention, the reinforcing member is provided in upper and lower portions of the connecting tubes of the vacuum vessels, thereby suppression of vibration caused by the gradient magnetic field coil and suppression of variation of static magnetic field can be realized. Further, in the MRI apparatus of the present invention, the reinforcing member is provided in upper and lower parts of the vacuum vessels, thereby suppression of vibration caused by the gradient magnetic field coil and suppression of variation of static magnetic field can be realized.Type: ApplicationFiled: June 23, 2005Publication date: December 29, 2005Inventors: Kunihito Suzuki, Hirofumi Motoshiromizu, Kunihiro Takayama, Yoshihide Wadayama, Akira Kurome, Shin Hoshino
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Publication number: 20050099181Abstract: The MRI apparatus has ring-shaped superconducting coils arranged to vertically oppose each other. The superconducting coils are installed in ring-shaped cooling containers. The cooling containers are accommodated in radiation shield plates. The radiation shield plates are accommodated in vacuum vessels. The cooling containers are connected together at at least two locations. Support members are arranged between an outer wall surface of the lower cooling container and an inner wall surface of the lower vacuum vessel to support the lower cooling container on the lower vacuum vessel. The upper cooling container is free, supported only by the connecting tubes connecting the upper and lower cooling containers.Type: ApplicationFiled: October 15, 2004Publication date: May 12, 2005Inventors: Hirofumi Motoshiromizu, Kunihito Suzuki, Hiroyuki Watanabe