Patents by Inventor Hironori Yamada
Hironori Yamada 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: 20240120817Abstract: A permanent magnet-type rotary electric machine includes a stator, a first rotor, and a second rotor. The stator includes a stator core, a plurality of stator teeth, a plurality of stator slots, a plurality of stator magnets, and a stator coil. The first rotor is disposed inside the stator core relative to the plurality of stator magnets. The second rotor is disposed inside the stator core relative to a plurality of first pole pieces. The second rotor includes a plurality of second pole pieces. A proportion of the number of the plurality of stator slots to the number of poles of the plurality of second pole pieces of the second rotor is greater than 1.25 and less than 1.5, or greater than 1.5 and less than 3.0.Type: ApplicationFiled: December 23, 2020Publication date: April 11, 2024Applicants: Mitsubishi Electric Corporation, OSAKA UNIVERSITYInventors: Haruyuki KOMETANI, Ryoji MIYATAKE, Takuro YAMADA, Kenji TANAKA, Katsuhiro HIRATA, Noboru NIGUCHI, Kazuaki TAKAHARA, Hironori SUZUKI, Takuya ITO
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Publication number: 20230072996Abstract: A structure including an Sn layer or an Sn alloy layer includes a substrate, an Sn layer or Sn alloy layer formed above the substrate, and an under barrier metal formed between the substrate and the Sn layer or Sn alloy layer. The under barrier metal is an Ni alloy layer containing Ni, and at least one selected from W, Ir, Pt, Au, and Bi, and can sufficiently inhibit generation of an intermetallic compound through a reaction, caused due to metal diffusion of a metal contained in the substrate, between the metal and Sn contained in the Sn layer or Sn alloy layer.Type: ApplicationFiled: February 5, 2020Publication date: March 9, 2023Inventors: Takahiro TANAKA, Hironori YAMADA, Daiki TAKASE, Masaru HATABE
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Patent number: 8302947Abstract: A clamp rod (6) inserted into a guide hole (5) of a housing (4) has: a clamping member (10); an inner piston (12); and a tapered pressure receiving surface (13), which are provided in this order in an axial direction from a left end to a right end. An output portion (26) for locking and releasing is provided on an inner periphery of a right end portion of one outer piston (23) inserted between the inner piston (12) and the guide hole (5). A collet (33) inserted between the pressure receiving surface (13) and the guide hole (5) is formed of four divided members (34) arranged circumferentially at substantially regular intervals. An input portion (36) driven by the output portion (26) and a pressing surface (40) which makes a wedge-engagement with the pressure receiving surface (13) from a right side are respectively provided in an outer periphery portion and on an inner periphery portion of each divided member (34).Type: GrantFiled: November 28, 2008Date of Patent: November 6, 2012Assignee: Kosmek Ltd.Inventors: Keitaro Yonezawa, Toshinao Nishimoto, Hironori Yamada
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Patent number: 8258750Abstract: A charging circuit and a charging method by the charging circuit that allow a stable charging operation are provided. The charging method of charging a battery from a charging power supply according to a constant current constant voltage charging system includes the steps of increasing a charging current for each predetermined current level step by step at a time of constant current charging, thereby performing the constant current charging, and stopping the increase of the charging current and continuing the charging maintaining a predetermined minimum chargeable voltage determined by the battery in advance, when it is detected that a supply voltage from the charging power supply has assumed the predetermined minimum chargeable voltage.Type: GrantFiled: April 12, 2007Date of Patent: September 4, 2012Assignee: NEC CorporationInventor: Hironori Yamada
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Publication number: 20100308521Abstract: A clamp rod (6) inserted into a guide hole (5) of a housing (4) has: a clamping member (10); an inner piston (12); and a tapered pressure receiving surface (13), which are provided in this order in an axial direction from a left end to a right end. An output portion (26) for locking and releasing is provided on an inner periphery of a right end portion of one outer piston (23) inserted between the inner piston (12) and the guide hole (5). A collet (33) inserted between the pressure receiving surface (13) and the guide hole (5) is formed of four divided members (34) arranged circumferentially at substantially regular intervals. An input portion (36) driven by the output portion (26) and a pressing surface (40) which makes a wedge-engagement with the pressure receiving surface (13) from a right side are respectively provided in an outer periphery portion and on an inner periphery portion of each divided member (34).Type: ApplicationFiled: November 28, 2008Publication date: December 9, 2010Inventors: Keitaro Yonezawa, Toshinao Nishimoto, Hironori Yamada
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Patent number: 7618030Abstract: An annular piston (21) is inserted into a cylinder hole (20) of a housing (4) so as to be vertically movable and be prevented from rotating. Into a cylindrical hole (24) of the piston (21), a cylindrical rotating member (25) is inserted while prevented from moving vertically. A ball screw mechanism (28) is provided between the piston (21) and the rotating member (25). On an outer peripheral surface of the rotating member (25), a circulation passage (59) which communicatively connects a start end and a terminal end of a male spiral groove (56) is formed in a recessed manner. Into a guide hole (29) formed in an upper half of the housing (4), an output rod (30) is inserted rotatably and movably vertically. An input portion (41) of the output rod (30) is connected to the rotating member (25) so as to transmit rotation. By driving the piston (21) upward, a bolt (45) provided on an upper end portion of the output rod (30) is engaged with an internal threaded hole (12) of a work (10).Type: GrantFiled: March 14, 2006Date of Patent: November 17, 2009Assignee: Kosmek Ltd.Inventors: Keitaro Yonezawa, Hironori Yamada
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Publication number: 20090085528Abstract: A charging circuit and a charging method by the charging circuit that allow a stable charging operation are provided. The charging method of charging a battery from a charging power supply according to a constant current constant voltage charging system includes the steps of increasing a charging current for each predetermined current level step by step at a time of constant current charging, thereby performing the constant current charging, and stopping the increase of the charging current and continuing the charging maintaining a predetermined minimum chargeable voltage determined by the battery in advance, when it is detected that a supply voltage from the charging power supply has assumed the predetermined minimum chargeable voltage.Type: ApplicationFiled: April 12, 2007Publication date: April 2, 2009Inventor: Hironori Yamada
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Publication number: 20080189924Abstract: An annular piston (21) is inserted into a cylinder hole (20) of a housing (4) so as to be vertically movable and be prevented from rotating. Into a cylindrical hole (24) of the piston (21), a cylindrical rotating member (25) is inserted while prevented from moving vertically. A ball screw mechanism (28) is provided between the piston (21) and the rotating member (25). On an outer peripheral surface of the rotating member (25), a circulation passage (59) which communicatively connects a start end and a terminal end of a male spiral groove (56) is formed in a recessed manner. Into a guide hole (29) formed in an upper half of the housing (4), an output rod (30) is inserted rotatably and movably vertically. An input portion (41) of the output rod (30) is connected to the rotating member (25) so as to transmit rotation. By driving the piston (21) upward, a bolt (45) provided on an upper end portion of the output rod (30) is engaged with an internal threaded hole (12) of a work (10).Type: ApplicationFiled: March 14, 2006Publication date: August 14, 2008Inventors: Keitaro Yonezawa, Hironori Yamada
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Publication number: 20060226591Abstract: A drive piston (11) is inserted into a housing (8) vertically movably. A pull rod (18) is projected further upward than a support surface (S) of the housing (8), and the pull rod (18) is connected to the drive piston (11) radially movably. An inner engaging member (38) is supported on an outer periphery of the pull rod (18) vertically movably. The inner engaging member (38) is adapted to be radially movable with respect to the housing (8), and the inner engaging member (38) is advanced upward by a coned disc spring (41). A plurality of outer engaging members (39) to be inserted into an engaging hole (3) of a work pallet (2) are arranged on an outer periphery of the inner engaging member (38). The plurality of outer engaging members (39) are wedge-engaged with the inner engaging member (38) from the upper side. To these outer engaging members (39) is joined an upper portion of the pull rod (18). The plurality of outer engaging members (39) are urged radially inward by a ring-shaped flat spring (44).Type: ApplicationFiled: July 9, 2004Publication date: October 12, 2006Inventors: Keitaro Yonezawa, Gaku Yoshimura, Yosuke Haruna, Hironori Yamada
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Patent number: 6889063Abstract: A cellular phone of the present invention is capable of displaying an in-absence incoming call message on a display if the user of the phone does not answer an incoming call. At the same time as the in-absence incoming call message is displayed, a timer starts counting a period of time set therein beforehand. A reporting device alerts the user to the incoming call when the timer counts up the preselected period of time. The phone therefore alerts the user to the incoming call not noticed or answered by the user despite that the user carries it.Type: GrantFiled: December 4, 2001Date of Patent: May 3, 2005Assignee: NEC CorporationInventor: Hironori Yamada
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Publication number: 20020068615Abstract: A cellular phone of the present invention is capable of displaying an in-absence incoming call message on a display if the user of the phone does not answer an incoming call. At the same time as the in-absence incoming call message is displayed, a timer starts counting a period of time set therein beforehand. A reporting device alerts the user to the incoming call when the timer counts up the preselected period of time. The phone therefore alerts the user to the incoming call not noticed or answered by the user despite that the user carries it.Type: ApplicationFiled: December 4, 2001Publication date: June 6, 2002Inventor: Hironori Yamada
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Patent number: 6371467Abstract: A bolster of a press machine has a T-shaped groove, into which a T-shaped leg of a hydraulic clamp is fitted. The clamp advances and retreats along the T-shaped groove by a pneumatic cylinder. A housing of the clamp has a side surface to which a block is fixed. The block is provided with a hydraulic locking device. When placing the clamp in a waiting condition at a retreated position, a push piston of the locking device is projected downwards from a retracted position. Then the push piston pushes an upper surface of the bolster and the thus resulting reaction force fixes the T-shaped leg to a peripheral wall of the T-shaped groove.Type: GrantFiled: November 24, 2000Date of Patent: April 16, 2002Assignee: Kabushiki Kaisha KosmekInventors: Toshinao Nishimoto, Hironori Yamada, Tsutomu Shirakawa
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Patent number: 5654096Abstract: An easily producible electroconductive conjugate fiber having an excellent electroconductivity and a high whiteness includes at least one non-electroconductive filamentary segment (A) formed from a fiber-forming polymeric material and at least one electroconductive filamentary segment (B) incorporated with the segments (A) so as to form, for example, a core-in-sheath type or bimetal type conjugate fiber, and including a thermoplastic polymeric matrix (a) and a plurality of electroconductive multilayered particles (b) dispersed in the matrix (a), having an average size of 0.1 to 2.0 .mu.m and each having (i) a core particle of a metal component, (ii) an undercoat layer formed from tin oxides on the core particle and (iii) an uppercoat layer formed from a mixture of indium oxides with tin oxides on the undercoat layer (ii), and optionally surface-treated with a silane compound, for example, vinyl tri-C.sub.1-5 alkoxysilane, or divinyl di-C.sub.1-5 alkoxysilane.Type: GrantFiled: March 30, 1995Date of Patent: August 5, 1997Assignee: Teijin LimitedInventors: Hironori Yamada, Kimihiro Ogawa, Seiji Itoh, Toshihiro Santa
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Patent number: 5183708Abstract: A cushion structure whose resilience to compression, compression durability and recovery from compression are improved and which is free from bottom-hit feel, in the matrix of which an elastomeric conjugated fiber containing as one of the components a thermoplastic elastomer is dispersed and mixed and wherein amebic, all-directionally flexible heat-bonded spots formed at the crossing points of the conjugated fibers and semi-all-directionally flexible heat-bonded spots formed at the crossing points of the conjugated fibers with the non-elastomeric, crimped polyester staple fibers are scatteringly present and, in conjugated fibers present between any two adjacent, flexible heat-bonded spots, part of them contain at least one thick portion in the longitudinal direction.Type: GrantFiled: January 23, 1992Date of Patent: February 2, 1993Assignee: Teijin LimitedInventors: Makoto Yoshida, Hironori Yamada, Nobuo Takahashi, Kazushi Fujimoto
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Patent number: 5076397Abstract: A lubricant condition sensing unit for the lower unit of a marine propulsion drive. Light is transmitted through the lubricant and the condition and level of the lubricant is sensed by comparing the light signal transmitted with a predetermined value.Type: GrantFiled: August 30, 1990Date of Patent: December 31, 1991Assignee: Sanshin Kogyo Kabushiki KaishaInventor: Hironori Yamada
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Patent number: 5070178Abstract: A polyether-ester block copolymer, and filaments formed therefrom, having an enhanced thermal stability of the elastic property thereof and a satisfactory dyeing property, comprises a polymerization product of (A) an acid component comprising as a major ingredient, terephthalic acid, (B) a phosphonium sulfate component comprising a compound of the formula (I): ##STR1## wherein Z.sub.1 =tri- or more valent aromatic or aliphatic group, A.sub.1 =ester-forming group, A.sub.2 =H or ester-forming group, R.sup.1, R.sup.2, R.sup.3, R.sup.4 =alkyl or aryl radical and n=a positive integer, (C) a polymeric glycol component comprising a polyoxyalkylene glycol having an MW of 400 to 6000 and (D) a monomeric glycol component comprising, as a major ingredient, 1,4-butane diol, in which the copolymer component (B) is in an amount of from 0.Type: GrantFiled: September 4, 1990Date of Patent: December 3, 1991Assignee: Teijin LimitedInventor: Hironori Yamada
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Patent number: 4851504Abstract: An improved copolyester fiber capable of being dyed with cationic dyes and having an excellent brightness, heat resistance and a satisfactory mechanical strength comprises a copolyester resin comprising a polymerization product of at least one aromatic dicarboxylic acid compound, at least one alkylene diol compound and at least one quaternary phosphonium organic sulfonate of the formula (I): ##STR1## wherein A=an aromatic or aliphatic radical, X.sup.1 =H or an ester-forming organic radical, X.sup.2 =an ester-forming organic radical, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 =an alkyl or aryl radical, n=1 or more, and having an [.eta.].sub.f of 0.5 or more, the copolyester fiber having a silk factor of 25 or more and exhibiting the number of scission of backbone chains of the copolyester molecules of 140.times.10.sup.23 or less per 10.sup.6 g of fiber when wet heat-treated in a solution of 0.4 g/l of acetic acid in distilled water at 130.degree. for 60 minutes.Type: GrantFiled: January 15, 1988Date of Patent: July 25, 1989Assignee: Teijin LimitedInventors: Togi Suzuki, Shinji Ohwaki, Setsuo Yamada, Hironori Yamada, Kimihiro Ogawa, Kohichi Iohara
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Patent number: 4663423Abstract: A polyester formed by adding compounds of the following formulae I and II to a reaction product of terephthalic acid or a dicarboxylic acid mixture mainly composed of terephthalic acid or an ester-forming derivative thereof with at least one glycol or an ester-forming derivative thereof, having a melt electrical resistance of not higher than 1600.times.10.sup.6 .OMEGA. and a softening point higher than the softening point derived from Flory's equation for the melting temperature of random copolymers but lower than the softening point of a polyester obtained by adding a compound of formula I alone: ##STR1## wherein each R independently represents a hydrogen atom or an alkyl group having 1 or 2 carbon atoms.Type: GrantFiled: April 15, 1985Date of Patent: May 5, 1987Assignee: Teijin LimitedInventors: Hironori Yamada, Nobuo Sayama, Masashi Kuno
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Patent number: 4413703Abstract: A bass-reflex type speaker system having a cabinet including a front baffle board, a back panel and two side panels and a speaker mounted on the front panel. A port is disposed in either the back panel or in one of the side panels and a duct is in communication with the port. The back panel may be flat or have a generally triangular cross-sectional configuration where the apex of the triangle is directed toward the speaker. Further, the speaker may be positioned in the approximate center of the front baffle board and the port positioned at the apex of the back panel. A beam may be provided extending across and spaced from the port, the beam having a triangular shaped tip directed toward and spaced from the port.Type: GrantFiled: March 12, 1982Date of Patent: November 8, 1983Assignee: Trio Kabushiki KaishaInventors: Harumitsu Kato, Hironori Yamada, Kaoru Yamazaki, Masashi Maruyama, Takashi Ogasawara
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Patent number: 4345602Abstract: Disclosed is a medical vascular guide wire made of a synthetic resin hollow monofilament. The guide wire is comprised of a tip part, a flexible part having a smaller diameter than the other parts, a tapering part and a manipulating part, these four parts continuously forming in line, in that order, along the monofilament axis. At least the tip part and the manipulating part have X-ray impermeable material inserted in the respective hollows thereof. A self-guiding type catheter made of a synthetic resin, multi-hollow monofilament is also provided.Type: GrantFiled: January 29, 1980Date of Patent: August 24, 1982Assignees: Toray Monofilament Company Limited, Osaka City GovernmentInventors: Hidenaga Yoshimura, Kunio Yamada, Hironori Yamada, Ryusaku Yamada, Hiroaki Kudo