Patents by Inventor Kazuyuki Kasahara
Kazuyuki Kasahara 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: 8844608Abstract: In an induction emission air conditioning apparatus installed in a ceiling, it is provided within a casing with a heat exchanger through which a feed air introduced from an outdoor side passes, a fan passing the feed air through the air conditioning heat exchanger, and a heating and cooling unit 1 for blowing a mixed air obtained by inducing and suctioning the air in the room inside by using the feed air passing through the heat exchanger so as to mix with the feed air, into the room inside in a laminar manner, and emitting the heat of the mixed air to the room inside, integrally.Type: GrantFiled: April 13, 2010Date of Patent: September 30, 2014Assignee: Kimura Kohki Co., Ltd.Inventors: Keiichi Kimura, Mitsuo Morita, Kazuyuki Kasahara, Katsuhiro Urano
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Publication number: 20100263829Abstract: In an induction emission air conditioning apparatus installed in a ceiling, it is provided within a casing with a heat exchanger through which a feed air introduced from an outdoor side passes, a fan passing the feed air through the air conditioning heat exchanger, and a heating and cooling unit 1 for blowing a mixed air obtained by inducing and suctioning the air in the room inside by using the feed air passing through the heat exchanger so as to mix with the feed air, into the room inside in a laminar manner, and emitting the heat of the mixed air to the room inside, integrally.Type: ApplicationFiled: April 13, 2010Publication date: October 21, 2010Inventors: Keiichi Kimura, Mitsuo Morita, Kazuyuki Kasahara, Katsuhiro Urano
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Patent number: 7209355Abstract: A cooling device for cooling a heat-generating component includes a circulating passage arranged to have coolant circulate therein, a centrifugal pump including a first case made of metallic material, a second case made of resin material, and an impeller accommodated in the pump chamber, and a radiator provided at the circulating passage and being operable to release heat from the coolant. The first case has a surface arranged to contact the heat-generating component. The second case forms a pump chamber between the first case and the second case. The pump chamber stores the coolant therein. The impeller includes open-type vanes arranged to pressurize the coolant as to have the coolant flow through the circulating passage. The cooling device has a high cooling efficiency as well as a high operating efficiency of the motor while having a simple construction and a small overall size and a small thickness.Type: GrantFiled: October 29, 2004Date of Patent: April 24, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shinya Koga, Toshihiko Matsuda, Kyo Niwatsukino, Toshisuke Sakai, Toshiyuki Kubota, Masashi Hirose, Shigeru Narakino, Yoshimitsu Aizono, Kazuyuki Kasahara
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Publication number: 20050117298Abstract: A cooling device for cooling a heat-generating component includes a circulating passage arranged to have coolant circulate therein, a centrifugal pump including a first case made of metallic material, a second case made of resin material, and an impeller accommodated in the pump chamber, and a radiator provided at the circulating passage and being operable to release heat from the coolant. The first case has a surface arranged to contact the heat-generating component. The second case forms a pump chamber between the first case and the second case. The pump chamber stores the coolant therein. The impeller includes open-type vanes arranged to pressurize the coolant as to have the coolant flow through the circulating passage. The cooling device has a high cooling efficiency as well as a high operating efficiency of the motor while having a simple construction and a small overall size and a small thickness.Type: ApplicationFiled: October 29, 2004Publication date: June 2, 2005Inventors: Shinya Koga, Toshihiko Matsuda, Kyo Niwatsukino, Toshisuke Sakai, Toshiyuki Kubota, Masashi Hirose, Shigeru Narakino, Yoshimitsu Aizono, Kazuyuki Kasahara
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Patent number: 6839234Abstract: A pump for circulating a coolant has a housing thereof in direct thermal connection with an electronic component. This provides both the improvement of cooling efficiency of a cooling device and the realization of a compact, slim design of the device.Type: GrantFiled: May 28, 2003Date of Patent: January 4, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kyo Niwatsukino, Masashi Hirose, Shigeru Narakino, Yoshimitsu Aizono, Kazuyuki Kasahara, Shinya Koga, Toshisuke Sakai, Toshiyuki Kubota
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Patent number: 6795312Abstract: A circulation path, a radiator and a reserve tank which can remove air bubbles from the fluid passageway, constitute parts of a closed circulation path, and are formed by joining a flow path wall-forming radiation board on which curved surfaces as flow path walls are formed, with a flat plate-like flow path wall-forming radiation board as another curved surface by welding or the like. Therefore, the efficiency of heat exchange of a cooling apparatus for electronic equipment can be improved, removal of air bubbles from the flow passageway and reduction in size, weight and thickness is made possible without causing air lock.Type: GrantFiled: October 4, 2002Date of Patent: September 21, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shigeru Narakino, Kyo Niwatsukino, Kazuyuki Kasahara, Masashi Hirose, Yoshimitsu Aizono
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Publication number: 20040042176Abstract: A pump for circulating a coolant has a housing thereof in direct thermal connection with an electronic component. This provides both the improvement of cooling efficiency of a cooling device and the realization of a compact, slim design of the device.Type: ApplicationFiled: May 28, 2003Publication date: March 4, 2004Inventors: Kyo Niwatsukino, Masashi Hirose, Shigeru Narakino, Yoshimitsu Aizono, Kazuyuki Kasahara, Shinya Koga, Toshisuke Sakai, Toshiyuki Kubota
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Publication number: 20030214783Abstract: A circulation path, a radiator and a reserve tank which can remove air bubbles from the fluid passageway, constitute parts of a closed circulation path, and are formed by joining a flow path wall-forming radiation board on which curved surfaces as flow path walls are formed, with a flat plate-like flow path wall-forming radiation board as another curved surface by welding or the like. Therefore, the efficiency of heat exchange of a cooling apparatus for electronic equipment can be improved, removal of air bubbles from the flow passageway and reduction in size, weight and thickness is made possible without causing air lock.Type: ApplicationFiled: October 4, 2002Publication date: November 20, 2003Inventors: Shigeru Narakino, Kyo Niwatsukino, Kazuyuki Kasahara, Masashi Hirose, Yoshimitsu Aizono
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Publication number: 20030214786Abstract: A pump for circulating a coolant has a housing thereof in direct thermal connection with an electronic component. This provides both the improvement of cooling efficiency of a cooling device and the realization of a compact, slim design of the device.Type: ApplicationFiled: October 4, 2002Publication date: November 20, 2003Inventors: Kyo Niwatsukino, Masashi Hirose, Shigeru Narakino, Yoshimitsu Aizono, Kazuyuki Kasahara
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Patent number: 6435036Abstract: A vortex flow meter includes a measuring tube in which a fluid is carried, a vortex generator provided in the measuring tube for developing a Karman vortex in the fluid, a magnetic field generator generating a magnetic field across the measuring tube downstream of the vortex generator, a pair of electromotive force measuring electrodes provided downstream of the vortex generator for measuring an electromotive force generated by the Karman vortex passing across the magnetic field, a pair of reference electrodes provided at locations upstream and downstream of the electromotive force measuring electrodes, respectively, for measuring a potential at each location, and a detector circuit electrically connected to the electromotive force measuring electrodes and the reference electrodes for calculating the flow of the fluid from the electromotive force and the potential measured by the reference electrodes.Type: GrantFiled: July 16, 2001Date of Patent: August 20, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Toshisuke Sakai, Toshihiko Matsuda, Kazuyuki Kasahara, Yasumasa Fukami, Takashi Ehara, Motohiko Matsuguma, Yasuhiko Ezaki, Masashi Yamaguchi
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Publication number: 20020020225Abstract: A vortex flow meter includes a measuring tube in which a fluid is carried, a vortex generator provided in the measuring tube for developing a Karman vortex in the fluid, a magnetic field generator generating a magnetic field across the measuring tube at the downstream of the vortex generator, a pair of electromotive force measuring electrodes provided at the downstream of the vortex generator for measuring an electromotive force generated by the Karman vortex passing across the magnetic field, a pair of reference electrodes provided at the upstream and downstream of the electromotive force measuring electrodes, respectively, for measuring a potential at each location, and a detector circuit electrically connected to the electromotive force measuring electrodes and the reference electrodes for calculating the flow of the fluid from the electromotive force and the potential measured by the reference electrodes.Type: ApplicationFiled: July 16, 2001Publication date: February 21, 2002Inventors: Toshisuke Sakai, Toshihiko Matsuda, Kazuyuki Kasahara, Yasumasa Fukami, Takashi Ehara, Motohiko Matsuguma, Yasuhiko Ezaki, Masashi Yamaguchi
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Patent number: 5357162Abstract: A spindle motor with an H-type pneumatic dynamic bearing has a high durability against repeated starts and stops of rotation. The H-type bearing is composed of a radial bearing member, thrust plates firmly fixed to opposite ends of the radial bearing member and a cylindrical radial sleeve, which form a radial pneumatic dynamic bearing and thrust pneumatic dynamic bearings. A stator core is fixedly secured around a rotary member, which is in turn fixedly secured around the cylindrical radial sleeve. A total thrust clearance a+a' of the thrust bearings is represented by an inequality of (a+a')/A< 2.5/10.sup.4 based on a sliding surface diameter A of each thrust plate, a and total radial clearance b+b' of the radial bearing is represented by an inequality of (b+b')/B<5/10.sup.4 based on a sliding surface diameter B of the radial bearing member.Type: GrantFiled: February 25, 1993Date of Patent: October 18, 1994Assignee: Ebara CorporationInventors: Shunichi Aiyoshizawa, Kazuto Hirokawa, Kazuyuki Kasahara, Tohru Maruyama
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Patent number: 5224782Abstract: A hydrodynamic bearing for a spindle motor used in an environment of high degree of cleanness. A sliding surface of the hydrodynamic bearing is formed of a ceramic material with a surface roughness Ra not larger than 0.3 microns, and this sliding surface is coated thinly with at least one lubricant selected from among perfluoropolyethers having a functional group reactive with the ceramic material, thereby providing on the sliding surface a uniform thin film with a thickness in the range of from 20 to 100 angstrom and having protecting and lubricating functions. The lubricant is selected from among hydroxyl group-containing perfluoropolyethers, carboxyl group-containing perfluoropolyethers, and ester group-containing. The lubricant contains an antistatic agent.Type: GrantFiled: April 30, 1992Date of Patent: July 6, 1993Assignee: Ebara CorporationInventors: Sachihiko Miwa, Manabu Toshimitsu, Kazuyuki Kasahara, Yoshikazu Suganuma, Yumiko Noda
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Patent number: 5223758Abstract: A spindle motor has a rotor supported by a stator through a thrust bearing and a radial bearing. At least the thrust bearing is a hydrodynamic bearing. The spindle motor is provided with a device for adjusting the thrust laod that is applied to the thrust bearing. The load adjusting device has an electromagnet that is provided on the stator and a permanent magnet that is provided on the rotor in opposing relation to the electromagnet. Either the repelling force or the attraction force, which acts between the electromagnet and the permanent magnet, is controlled by changing the current supplied to the electromagnet.Type: GrantFiled: March 5, 1991Date of Patent: June 29, 1993Assignee: Ebara CorporationInventors: Takashi Kataoka, Yuji Shirao, Daisuke Konno, Yoshio Sato, Yoichi Kanemitsu, Hideo Tsuboi, Shunichi Aiyoshizawa, Kazuyuki Kasahara
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Patent number: 5142173Abstract: A bearing structure suitable for a spindle motor or the like, which enables such a motor to rotate with minimal vibrations. The bearing structure comprises a stator including a support shaft which is disposed on a base, and a rotor which is rotatably disposed around the support shaft. A radial hydrodynamic bearing and a thrust hydrodynamic bearing are disposed between the stator and the rotor. The stator has the support shaft, a thrust plate and a radial cylindrical member which is concentric with the support shaft. The thrust plate is secured to an end surface of the radial cylindrical member. The support shaft extends through the centers of the radial cylindrical member and the thrust plate. The rotor has a radial sleeve. The radial hydrodynamic bearing is formed from the inner peripheral surface of the radial sleeve and the outer peripheral surface of the radial cylindrical member, which face each other and either of which is formed with herringbone-shaped grooves for generating dynamic pressure.Type: GrantFiled: August 8, 1990Date of Patent: August 25, 1992Assignee: Ebara CorporationInventors: Daisuke Konno, Sachihiko Miwa, Shunichi Aiyoshizawa, Kazuyuki Kasahara, Yoshio Sato, Kazuto Hirokawa, Yumiko Noda
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Patent number: D618332Type: GrantFiled: January 7, 2010Date of Patent: June 22, 2010Assignee: Kimura Kohki Co., Ltd.Inventors: Keiichi Kimura, Mitsuo Morita, Kazuyuki Kasahara, Katsuhiro Urano
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Patent number: D618783Type: GrantFiled: January 7, 2010Date of Patent: June 29, 2010Assignee: Kimura Kohki Co., Ltd.Inventors: Keiichi Kimura, Mitsuo Morita, Kazuyuki Kasahara, Katsuhiro Urano
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Patent number: D619699Type: GrantFiled: September 16, 2009Date of Patent: July 13, 2010Assignee: Kimura Kohki Co. Ltd.Inventors: Keiichi Kimura, Mitsuo Morita, Kazuyuki Kasahara, Katsuhiro Urano
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Patent number: D621499Type: GrantFiled: September 18, 2009Date of Patent: August 10, 2010Assignee: Kimura Kohki Co., Ltd.Inventors: Keiichi Kimura, Mitsuo Morita, Kazuyuki Kasahara, Katsuhiro Urano
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Patent number: D629883Type: GrantFiled: July 29, 2010Date of Patent: December 28, 2010Assignee: Kimura Kohki Co., Ltd.Inventors: Keiichi Kimura, Mitsuo Morita, Kazuyuki Kasahara, Katsuhiro Urano