Patents by Inventor Hiroshi Kawai
Hiroshi Kawai 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: 20100219714Abstract: A stator core comprises a laminated part made by stacking a plurality of sheet-like plates and one sheet-like plate into an integral unit in a manner to form dimple portions on both surfaces in the stacking direction thereof, and side plates each having extended portions and nib portions formed on a surface opposite the side where the extended portions are provided and disposed in a manner to sandwich the both surfaces of the laminated part, wherein the laminated part and the side plates are fastened together by inserting the nib portions on the side plates into the dimple portions formed on the laminated part.Type: ApplicationFiled: April 3, 2008Publication date: September 2, 2010Applicant: Panasonic CorporationInventors: Kyo Abe, Okihisa Tsuchie, Hiroshi Kawai
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Publication number: 20100119145Abstract: A method of automatically counting a number of inclusions by eliminating the effects of shrinkage cavities in the conventional method and securing a high correlation with a value measured by a skilled worker and a casting mold for obtaining a cast sample used for the same are provided. A method of measurement of a number of nonmetallic inclusions comprising capturing an image of a rectangular fracture surface of a cast sample consisting of an aluminum alloy by a CCD camera or other image capturing means, processing the image captured by the image capturing means for color density, digitalizing the processed image by a predetermined threshold value, and counting the number of pixel clusters of a predetermined size or more, the method characterized by detecting the end edges of the short sides of the rectangular fracture surface before the capturing of its image and automatically setting measurement regions of an area of ¼ to ? of the area of the fracture surface at the two ends of the fracture surface.Type: ApplicationFiled: March 7, 2008Publication date: May 13, 2010Inventors: Mitsuyoshi Sato, Hiroshi Kawai, Yukio Kuramasu, Ryouji Abe
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Publication number: 20100059509Abstract: An object of the present invention is to provide a microwave heating appliance capable of achieving a locally concentrated heating in answer to the purpose while achieving a uniform heating in the overall heating chamber in a normal mode.Type: ApplicationFiled: June 15, 2007Publication date: March 11, 2010Applicant: PANASONIC CORPORATIONInventors: Hirohisa Imai, Koji Yoshino, Masamitsu Kondou, Hiroshi Kawai, Miki Ueda
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Publication number: 20100006977Abstract: An inductor includes a first air-bridge section and a second air-bridge section. The first air-bridge unit extends in a floating location over a substrate between a plurality of support locations on the substrate. The second air-bridge unit extends in a floating location over the first air-bridge unit between a plurality of support locations on the first air-bridge unit. This arrangement enables the first and second air-bridge sections to be connected in parallel, thus branching a flowing current. Thus, the conductor loss in each of the first and second air-bridge sections is reduced.Type: ApplicationFiled: May 18, 2009Publication date: January 14, 2010Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Kazutaka MUKAIYAMA, Hiroshi KAWAI, Naoto YATANI, Makoto INAI, Akinori HAMADA
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Publication number: 20090314276Abstract: There is provided a heating cooking apparatus which can reduce heating and cooking time by reducing the time for raising the temperature of a heating chamber to a desired temperature. In a heat source chamber 30, since the distance between a heat source 31 formed in the spiral shape in order to heat air and a circulating fan 32 is as close as less than 10 mm, ventilation efficiency improves. Further, a coating film 25 is formed on a side surface on the heat source chamber 30 side of a partition plate 22 which forms a boundary between the heat source chamber 30 and a heating chamber 20. Hereby, the heat supplied from the electric heater 31 is stored in the coating film 25, and next the heat is radiated from the coating film 25, with the result that the coating film 25 heats the air in the heat source chamber 30 as a second heat source.Type: ApplicationFiled: June 26, 2007Publication date: December 24, 2009Applicant: PANASONIC CORPORATIONInventors: Takahiko Yamasaki, Ikuhiro Inada, Yasuhisa Mori, Hiroshi Kawai
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Publication number: 20090206071Abstract: A high-frequency heating apparatus of the present invention includes a heating chamber to which a heating plate for loading a subject to be heated thereon is detachably attached, a microwave generating unit, a waveguide for transmitting a microwave from the microwave generating unit, a rotation antenna for radiating the microwave into the heating chamber from the waveguide, a driving unit for turning/driving the rotation antenna, an operating portion capable of choosing the grill menu by which the subject to be heated put on the heating plate is heated and a hot-up menu by which the subject to be heated is heated without the heating plate, and a controlling unit for controlling the driving unit based on an output signal form the operating portion, wherein the controlling unit controls to vary a direction of a sharp portion of a radiation directivity of the rotation antenna in response to the output signal from the operating portion.Type: ApplicationFiled: June 18, 2007Publication date: August 20, 2009Applicant: Panasonic CorporationInventors: Yasuhisa Mori, Takeshi Takizaki, Koji Yoshino, Hiroshi Kawai
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Patent number: 7544004Abstract: A lens barrel includes a lens mount for holding a lens in a barrel, a guide shaft extending parallel to an optical axis of the lens within the barrel and connected to the lens mount for guiding the lens mount along the optical axis, and a support operable to support opposite ends of the guide shaft in its extending direction within the barrel, the support including a support unit operable to support at least one of the opposite ends of the guide shaft, the support unit including a hole provided in the barrel, and a bearing member attached from the exterior of the barrel into the hole and being removable therefrom, the bearing member being rotatable about a center axis of the hole, wherein the bearing member includes a shaft inserted into the hole and a bearing hole provided in the shaft, with one end of the guide shaft being inserted into the bearing hole and a center axis of the bearing hole being eccentric from a center axis of the shaft.Type: GrantFiled: February 16, 2006Date of Patent: June 9, 2009Assignee: Sony CorporationInventors: Hiroshi Kawai, Hideharu Miyagaki
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Publication number: 20090035554Abstract: A preform for a composite material which has high strength and excellent air permeability and hence is applicable to a high-speed die casting method and which is capable of forming a metal composite material having excellent mechanical properties by a high-speed die casting method. Also provided is a process for producing such a preform. Ceramic fibers or/and ceramic particles are mixed with a silica sol and calcium carbonate and sintered at a predetermined temperature to form a calcium/silicon sinter obtained from the silica sol and calcium carbonate. The calcium/silicon sinter coats the ceramic fibers or/and ceramic particles so that a preform having the fibers or/and the particles bound to each other by the calcium/silicon sinter is obtained. The preform for a composite material has high strength and excellent air permeability and is applicable to the high-speed die casting method capable of attaining high productivity.Type: ApplicationFiled: February 1, 2007Publication date: February 5, 2009Applicants: Central Motor Wheel Co., Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHA, GE TECHNO CO., LTD.Inventors: Makoto Fujita, Kunio Kumagai, Masaoki Hashimoto, Kazuko Hashimoto, Hidenori Uebayashi, Hiroshi Kawai, Mitsuyoshi Sato, Masaru Kato
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Publication number: 20080163479Abstract: A needle roller bearing manufacturing apparatus and needle roller bearing manufacturing method make it possible to considerably reduce the time required for fitting of rollers and improve the operation efficiency. In the needle roller bearing manufacturing apparatus 1 of the present invention, rollers held in groove portions are fitted in fitting holes of a retainer and a needle roller bearing is assembled, by a rotation of a disc member with a rotation-drive of a motor. In this way, a reciprocating motion of a pusher section which is conventionally carried out in order to fit the rollers is not required. Consequently, there is obtained the effect of being able to considerably reduce the time required for fitting the rollers, thus making it possible to improve the operation efficiency.Type: ApplicationFiled: March 8, 2006Publication date: July 10, 2008Inventors: Tatsuro Yagi, Masaharu Natsume, Hiroshi Kawai, Toshiharu Sakakibara
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Patent number: 7377047Abstract: The present invention provides a machine tool with a workpiece measuring instrument which prevents the workpiece measuring instrument from being affected by chips or cutting heat during non-machining, while enabling a workpiece W to be measured near a machining position. A machine tool has a bed 9 and a cover 3 surrounding a machining area R. Workpiece supporting means 6, machining means 7, and workpiece measuring instrument 31 are provided in the machining area R. Position switching means 32 is provided which moves the workpiece measuring instrument 31 between a position inside the machining area R and a storage position B outside the machining area R. The workpiece supporting means 6 is movable in a lateral direction. The workpiece measuring instrument 31 is movable forward and backward so as to freely switch its position, and measures the workpiece W.Type: GrantFiled: October 17, 2006Date of Patent: May 27, 2008Assignee: Murata Kikai Kabushiki KaishaInventor: Hiroshi Kawai
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Publication number: 20080088803Abstract: A lamp cooling apparatus for cooling a lamp may include a lamp outlet duct connected to the lamp, a lamp inlet duct connected to the lamp, a first joint segment provided at the front end of the lamp outlet duct, a second joint segment provided at the front end of the lamp inlet duct, a first pipe whose one end is adjustably connected to the first joint segment, a third joint segment to which the other end of the first pipe is shiftably connected, a cooling mechanism section for cooling air, connected to the third joint segment, a fourth joint segment connected to a discharge section for discharging air cooled by the cooling mechanism section, and a second pipe whose one end is shiftably connected to the fourth joint segment, and the other end is shiftably connected to the second joint segment.Type: ApplicationFiled: September 20, 2007Publication date: April 17, 2008Applicant: Sony CorporationInventors: Hiroshi Kawai, Masanori Takenaka
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Publication number: 20080080361Abstract: The invention provides an optical recording medium capable of stably forming an image with drawing accuracy. The optical recording medium of the invention comprises a first substrate and a second substrate adhered to each other, and each substrate has a wobble thereon. The first substrate has a wobble amplitude ratio (A) which is higher than a wobble amplitude (B) of the second substrate.Type: ApplicationFiled: July 21, 2005Publication date: April 3, 2008Inventor: Hiroshi Kawai
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Patent number: 7326893Abstract: A high frequency heating apparatus having a steam generating function including a heater main body 111 embedded with heater 27, a transport tube heating portion 113 for boiling a liquid in a transport tube 112, and a heat conduction control portion 114 comprising a material having a heat conductivity smaller than a heat conductivity of a material forming an evaporating portion 25 and capable of restraining adherence of scale in accordance with local boiling in the transport tube by reducing an amount of heat conducted to the transport tube 112 while ensuring heat energy supplied to an evaporating side by setting heater to a high temperature. Further, a steam supply mechanism for excellently maintaining a balance of supply of the heat energy to a side of a transport portion and a side of an evaporating portion and continuously generating steam at a high temperature near to 100° C. can be provided.Type: GrantFiled: May 19, 2004Date of Patent: February 5, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kouji Kanzaki, Yasuhisa Mori, Masato Matsuda, Hiroshi Kawai
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Patent number: 7323503Abstract: A process for producing an ethylene-vinyl alcohol copolymer resin, including feeding EVOH into an extruder, keeping the temperature of the melting resin in the extruder at 70 to 170° C., adjusting the amount of water in the extruder so that the water content right after being discharged from the extruder is 5 to 40 weight %, and extruding out the EVOH resin. The extruded EVOH resin is cut into EVOH pellets. Thereby, it is possible to obtain resin pellets in which no spherocrystals are observed in the center of the cross section of the resin when the cross section is observed by the use of a polarization microscope, or no lubricant is contained in the resin pellets, and the angle of repose is 23° or less when the resin pellets are laminated.Type: GrantFiled: December 8, 2003Date of Patent: January 29, 2008Assignee: Kuraray Co., Ltd.Inventors: Takaharu Kawahara, Hiroshi Kawai, Toshio Tuboi, Yukihiro Ohara, Masao Hikasa
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Publication number: 20080014379Abstract: A scratch type printed material that is hardly reproduced is provided. An area of a scratch layer 104 is smaller than an area of a release layer 103, and a printing layer 105 is formed on the portion of the release layer 103 protruding from the scratch layer 104, or the area of the scratch layer 104 is smaller than an area of a release layer 104 and the printing layer 105 is formed between the release layer 103 and the scratch layer 104 and on the portion of the release layer 103 protruding from the scratch layer 104, or a printing layer 501 made of temperature-indicating ink is formed on the scratch layer 104. As a result, when the scratch layer 104 is scratched off, the printing layers 105 and 501 are also partially broken, and the color of the printing layer 105 on the base material 10 becomes pale.Type: ApplicationFiled: November 10, 2005Publication date: January 17, 2008Applicant: KYODO PRINTING CO., LTD.Inventors: Yoshiaki Shibaoka, Hiroshi Kawai, Fumihito Kobayashi
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Patent number: 7304278Abstract: An object of the present invention is to provide a high frequency heating apparatus having a steam generating function in which a time required for evaporation of dropped water can be remarkably increased when water is dropped onto an evaporation tray and the heating efficiency is high. The high frequency heating apparatus has a steam generating function that includes a high frequency generator and a steam generator that includes an evaporation tray provided on the bottom surface of a heating chamber in which a heating target is mounted and a heater device for heating the evaporation tray to generate steam in the heating chamber, wherein the heater device is constructed as a heater device (11) having a sheathed heater (113) embedded in an aluminum die cast (111), and the heater device is directly attached to the back side of the evaporation tray (22).Type: GrantFiled: March 11, 2004Date of Patent: December 4, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kouji Kanzaki, Yuji Hayakawa, Takahiko Yamasaki, Yasuhisa Mori, Takayuki Akashi, Hiroshi Kawai
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Publication number: 20070237051Abstract: The present invention provides an optical recording medium having on each side thereof a recording layer in which information is recorded by irradiating the medium with a laser beam. Each recording layer is given recording condition information regarding at least one recording condition for the recording layer. The recording condition information given to one of the recording layers is different from that given to the other. The present invention also provides a recording method for the optical recording medium including: recording information in each of the recording layers on the basis of the at least one recording condition corresponding to the recording condition information given to the respective recording layer.Type: ApplicationFiled: July 21, 2005Publication date: October 11, 2007Inventor: Hiroshi Kawai
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Publication number: 20070161404Abstract: To reduce costs of developing mobile communication terminals such as PHS communication terminals and facilitate development of mobile communication terminals by a manufacturer that does not have wireless communication technology. A new wireless communication module that is a separate small module comprising only wireless communication portion and a new terminal supporting the wireless communication module are proposed. The wireless communication module of the invention is used by being inserted to a corresponding slot of a terminal supporting the wireless communication module of the invention that has a configuration excluding wireless communication portion from a conventional mobile communication terminal. The present invention reduces burdens of development on terminal manufacturers. The invention also enables a manufacturer that does not have wireless communication technology to develop an original terminal.Type: ApplicationFiled: July 5, 2006Publication date: July 12, 2007Inventors: Nozomu Yasujima, Hiroshi Kawai, Kazuaki Kobayashi, Junichi Fukumoto, Takao Hanazuka, Hideto Funayoshi, Kenji Kawasaki, Tsukasa Akiyama
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Publication number: 20070084074Abstract: The present invention provides a machine tool with a workpiece measuring instrument which prevents the workpiece measuring instrument from being affected by chips or cutting heat during non-machining, while enabling a workpiece W to be measured near a machining position. A machine tool has a bed 9 and a cover 3 surrounding a machining area R. Workpiece supporting means 6, machining means 7, and workpiece measuring instrument 31 are provided in the machining area R. Position switching means 32 is provided which moves the workpiece measuring instrument 31 between a position inside the machining area R and a storage position B outside the machining area R. The workpiece supporting means 6 is movable in a lateral direction. The workpiece measuring instrument 31 is movable forward and backward so as to freely switch its position, and measures the workpiece W.Type: ApplicationFiled: October 17, 2006Publication date: April 19, 2007Applicant: MURATA KIKAI KABUSHIKI KAISHAInventor: Hiroshi Kawai
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Publication number: 20070029313Abstract: A high frequency heating apparatus having a steam generating function including a heating means main body 111 embedded with heating means 27, a transport tube heating portion 113 for boiling a liquid in a transport tube 112, and a heat conduction control portion 114 comprising a material having a heat conductivity smaller than a heat conductivity of a material forming an evaporating portion 25 and capable of restraining adherence of scale in accordance with local boiling in the transport tube by reducing an amount of heat conducted to the transport tube 112 while ensuring heat energy supplied to an evaporating side by setting heating means to a high temperature. Further, a steam supply mechanism for excellently maintaining a balance of supply of the heat energy to a side of a transport portion and a side of an evaporating portion and continuously generating steam at a high temperature near to 100° C. can be provided.Type: ApplicationFiled: May 19, 2004Publication date: February 8, 2007Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kouji Kanzaki, Yasuhisa Yasuhisa, Masato Matsuda, Hiroshi Kawai