Patents by Inventor Yuji Shishido
Yuji Shishido 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: 20040042695Abstract: A bearing unit is provided which supports a shaft (51) rotatably. It includes the shaft (51), a radial bearing (55) to support the shaft (51) circumferentially, a thrust bearing (58) to support the shaft (51) at one of thrusting-directional ends of the latter, a housing (56) having disposed therein the radial bearing (55) and thrust bearing (58) supporting together the shaft (51) and which is filled with a viscous fluid (67), and a spacer member (65) disposed inside the housing (56) to keep a gap defined between the end face of the radial bearing (55) and one side of a radial projection (54) included in the shaft (51). On the end face of the radial breading (55) opposite to one side of the radial projection (54), there is formed a first dynamic pressure producing recess (63) which produces a dynamic pressure by the viscous fluid.Type: ApplicationFiled: June 18, 2003Publication date: March 4, 2004Inventors: Yuji Shishido, Toshio Hashimoto, Kiyoyuki Takada
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Publication number: 20040028299Abstract: A bearing unit is provided which includes a shaft (51) to support rotatably, radial bearing (55) to support the shaft (51) circumferentially, a thrust bearing (66) to support the shaft (51) in the direction of thrusting, and a housing (56) having the radial bearing (55) and thrust bearing (66) disposed therein and in which a viscous fluid (57) is filled. The housing (56) has a sealed structure except for a shaft insertion hole (65) formed therein and through which the shaft 51 is introduced. Between the outer surface of the shaft (51) and the inner surface of the shaft insertion hole (65), there is defined a gap (69) having a sufficient width to prevent the viscous fluid (57) filled in the housing (56) from leaking out of the latter. The housing (56) is formed as a one-piece structure by molding a synthetic resin.Type: ApplicationFiled: May 15, 2003Publication date: February 12, 2004Inventors: Yuji Shishido, Kenichiro Yazawa, Shinichiro Kato, Shuichi Kikuchi, Toru Ujiie
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Patent number: 6653313Abstract: The present invention relates to compounds of the formula wherein each A is independently halo; Y is —(CH2)m—, —C(O)— or —S(O)—; R1 and R2 are independently C1-4 alkyl; R3 is substituted azacycloalkyl etc.; R4 is phenyl substituted at the 2-position with a substituent selected from substituted C1-7 alkyl, substituted C1-7 alkoxy, amine, etc; R5 is hydrogen or C1-4 alkyl; m is 0, 1 or 2; and n is 0, 1, 2, 3, 4 or 5. The present invention also relates to pharmaceutical compositions containing such compounds and to the use of such compounds in the treatment and prevention of inflammation, asthma, allergic rhinitis, pain and other disorders.Type: GrantFiled: July 11, 2001Date of Patent: November 25, 2003Assignee: Warner-Lambert Company LLCInventors: Mitsuhiro Kawamura, Makoto Kawai, Yuji Shishido, Tomoki Kato, Yasuhiro Katsu, Takafumi Ikeda, Noriaki Murase
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Publication number: 20030112734Abstract: A structure for securing a spindle motor (15) supported on a motor substrate (32) to a chassis (13). The motor substrate (32) and the chassis (13) are coupled by at least three coupling sections (33). At least two of the coupling sections (33) are fixed support members (33a) which hold and space the motor substrate (32) and the chassis (13) from each other at a prescribed distance. The remaining coupling section is an adjusting support member (33b) that holds the motor substrate (32) and the chassis (13) from each other at a variable distance. Rigid holding means is incorporated in the adjusting support member (33b) and holds the motor substrate (32) and the chassis (13) so that the motor substrate (32) and the chassis (13) remain rigid.Type: ApplicationFiled: October 24, 2002Publication date: June 19, 2003Inventors: Yuji Shishido, Takashi Mochida, Mitsuhiro Ueno, Kazutaka Nakajima
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Patent number: 6506775Abstract: The invention provides a compound of formula (I): and its pharmaceutically acceptable salts, wherein R is halo C2-C8 alkenyl or halo C2-C8 alkynyl; R1 is hydrogen, halo or C1-C6 alkoxy; or R and R1, together with the two carbon atoms to which they are attached, form a C4-C6 cycloalkyl or a C4-C6 oxacycloalkyl ring wherein said ring may be optionally substituted by one or more substituents selected from the group consisting of halo, C1-C6 alkyl and halo C1-C6 alkyl; X is C1-C6 alkoxy, halo C1-C6 alkoxy, phenoxy or halo; and Ar is phenyl optionally substituted by halo. These compounds are useful in the treatment of a gastrointestinal disorder; a central nervous system (CNS) disorder; an inflammatory disease; emesis; urinary incontinence; pain; migraine; sunburn; diseases, disorders and adverse conditions caused by Heliobacter pylori; or angiogenesis especially CNS disorders in a mammalian subject, especially humans.Type: GrantFiled: May 1, 2000Date of Patent: January 14, 2003Assignee: Pfizer INCInventors: Kunio Satake, Yuji Shishido, Hiroaki Wakabayashi
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Publication number: 20020161006Abstract: The present invention relates to compounds of the formula 1Type: ApplicationFiled: July 11, 2001Publication date: October 31, 2002Inventors: Mitsuhiro Kawamura, Makoto Kawai, Yuji Shishido, Tomoki Kato, Yasuhiro Katsu, Takafumi Ikeda, Noriaki Murase
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Patent number: 6444677Abstract: This invention provides a compound of the formula (I): or the pharmaceutically acceptable salts thereof wherein A is independently halo; Y1 is —(CH2)m—, C(O) or S(O); Y2 is N or CH; R1 and R2 are independently C1-4 alkyl; R3 is selected from the following: (a) optionally substituted —(CH2)p—C3-7 cycloalkyl; (b) optionally substituted —C5-7 alkyl; and (c) substituted —C1-4 alkyl; and (d) optionally substituted C7-9 bicycloalkyl; R4 is optionally substituted thiazolyl, imidazolyl or oxazolyl; X is S, —NH, —N—C1-4 alkyl or O; R5 is hydrogen or C1-4 alkyl; R6 is C1-4 alkyl or halo; m is 0, 1 or 2; n is 0, 1, 2, 3, 4 or S; and p is 0, 1, 2, 3, 4, 5 or 6. These compounds are useful for the treatment of medical conditions caused by bradykinin such as inflammation, cardiovascular disease, pain, etc. This invention also provides a pharmaceutical composition comprising the above compound.Type: GrantFiled: December 7, 2000Date of Patent: September 3, 2002Assignee: Pfizer Inc.Inventors: Takafumi Ikeda, Mitsuhiro Kawamura, Noriaki Murase, Seiji Nukui, Yuji Shishido, Makato Kawai, Yoshiyuki Okumura
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Patent number: 6424613Abstract: There is provided an iron core coil motor using an iron core coil, as a stator coil, formed by winding a coil winding around an iron core. Floating in the shaft direction of rotor is prevented with an attracting force generated by offsetting the center of magnetism of iron core of coil and the center of magnetism of rotor magnet and moreover the attracting force is set to 0.8 to 2.0 times the total weight of the rotating elements including rotor. Thereby, generation of noise and vibration can be controlled.Type: GrantFiled: April 14, 2000Date of Patent: July 23, 2002Assignee: Sony CorporationInventors: Hiroshi Ikuta, Mitsuhiro Ueno, Kentaro Soeda, Yuji Shishido
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Patent number: 6329396Abstract: The invention provides a substituted benzylaminopiperidine compounds that are useful in the treatment of gastrointestinal disorders; central nervous system (CNS) disorders; inflammatory disease; emesis; urinary incontinence; pain; migraine; sunburn; diseases, disorders and adverse conditions caused by Heliobacter pylori; or angiogenesis, especially CNS disorders in a mammalian subject, especially in humans.Type: GrantFiled: May 1, 2000Date of Patent: December 11, 2001Assignee: Pfizer Inc.Inventors: Kunio Satake, Yuji Shishido, Hiroaki Wakabayashi
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Publication number: 20010046993Abstract: This invention provides a compound of the formula (I): 1Type: ApplicationFiled: December 7, 2000Publication date: November 29, 2001Inventors: Takafumi Ikeda, Mitsuhiro Kawamura, Noriaki Murase, Seiji Nukui, Yuji Shishido, Makato Kawai, Yoshiyuki Okumura
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Patent number: 6314077Abstract: A disk drive includes a drive unit including a mechanical chassis, a spindle motor for rotating a turn table on which a recording medium disk is supported, and a pickup movable in the radial direction of the recording medium disk supported by the turn table for reproducing and/or recording signals from and/or in the recording medium disk; a base chassis for supporting the drive unit via an elastic body; a self-aligning mechanism including a holder rotatable together with a rotor portion of the spindle motor and a balance member movable in the holder; and a counter weight disposed at a position suitable to allow the center of gravity of the drive unit to be located in conformity to or in proximity to the rotational center of the spindle motor.Type: GrantFiled: April 21, 1999Date of Patent: November 6, 2001Assignee: Sony CorporationInventors: Yuji Shishido, Takashi Mochida
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Patent number: 6252319Abstract: Disclosed is a disk rotating mechanism equipped with an automatic aligning mechanism in which the number of parts is reduced and in which an improvement in assembly operability and a reduction in cost are achieved. The automatic aligning mechanism includes a case body made of a non-magnetic material and formed as a flat cylinder with one end surface closed, two or more balance members provided so as to be freely movable in the inner space (movement space) of the case body, and an attracting magnet adapted to attract the balance members when the rotating mechanism is at rest or rotating at low speed, wherein the case body is supported by the spindle shaft of a spindle motor and wherein the closed end surface (table portion) thereof serves as the table portion of a turntable.Type: GrantFiled: June 28, 1999Date of Patent: June 26, 2001Assignee: Sony CorporationInventors: Fumiharu Sudo, Yuji Shishido, Takashi Mochida, Shigeo Kobayashi, Kentaro Soeda, Hiroshi Ikuta, Mitsuhiro Ueno
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Patent number: 6083943Abstract: A compound of the chemical formula (I) and its pharmaceutically acceptable salt: ##STR1## wherein Y is C.sub.2 -C.sub.4 alkylene; Z is a valence bond or C.sub.1 -C.sub.6 alkylene; R.sup.1 is substituted or unsubstituted aryl (e.g., phenyl and naphthyl) or heteroaryl (e.g., thienyl and furyl); R.sup.2 is hydrogen or C.sub.1 -C.sub.6 alkyl; R.sup.3 is hydrogen, hydroxy or the like; R.sup.4 is substituted or unsubstituted benzyl or the like. Typical examples are (2S*,3S*,4R*,5R*)-4-Carboxy-3-[N-(5-Isopropyl-2-methoxy-benzyl)amino]-5-me thyl-2-phenylpyrrolidine and (2S*,3S*,5S*)-5-Carboxy-3-[N-(2-methoxy-5-trifluoromethoxybenzyl)amino]-2- phenylpiperidine. The novel substituted azaheterocyclecarboxylic acids in this invention have excellent substance P antagonistic activity and are thus useful for the treatment of gastrointestinal disorders, central nervous system disorders, allergy, inflammatory diseases, asthma, pain, emesis or migraine in mammals, especially humans.Type: GrantFiled: March 19, 1999Date of Patent: July 4, 2000Assignee: Pfizer IncInventors: Masaya Ikunaka, Yuji Shishido, Masami Nakane
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Patent number: 6005749Abstract: A magnet is provided which holds spherical balancers in the central portion of a rotor when the rotation of the rotor is stopped. When rotations of the rotor is started, a larger torque T.sub.0 is transmitted from the rotor to the balancers. Thus, the balancers quickly start rotating. When the rotor rotates at high speed, the centrifugal force separates the balancers from the magnet and moves the same to the outer wall portion of the rotor. At this time, a torque T.sub.0 which is transmitted from the rotor to the balancer is reduced so that the balancers are moved in the circumferential direction. Thus, the automatic aligning operation is performed. The number (n) of the balancers is made to be a value obtained by the following equation:n=180/.theta.+0.5 (all digits to the right of the decimal point are discarded)wherein .theta.: angle of balancer balls disposed in the outer portion, in which .theta.=2sin.sup.Type: GrantFiled: March 6, 1998Date of Patent: December 21, 1999Assignee: Sony CorporationInventors: Hiroshi Ikuta, Fumiharu Sudo, Toru Nakahara, Mitsuhiro Ueno, Yuji Shishido
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Patent number: 5789423Abstract: This invention provides a compound of the formula: ##STR1## and its pharmaceutically acceptable salts, wherein R.sup.1 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl, halo C.sub.1 -C.sub.6 alkyl or terahydropyranyl, having one or more substituents selected from cyano, 1,3-thiazolanyl, COOR.sup.2, COR.sup.2, OCOR.sup.2, CONR.sup.3 R.sup.4, NR.sup.3 R.sup.4, NR.sup.5 COR.sup.3 and C.ident.CR.sup.6, wherein R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl, R.sup.3 and R.sup.4 are independently hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.3 -C.sub.6 cycloalkyl, R.sup.5 is C.sub.1 -C.sub.4 alkyl or C.sub.3 -C.sub.6 cycloalkyl and R.sup.6 is hydrogen, halo, cyano, C.sub.1 -C.sub.6 alkyl, COOH, COO(C.sub.1 -C.sub.4 alkyl) or phenyl; X is C.sub.1 -C.sub.6 alkoxy or halo C.sub.1 -C.sub.6 alkoxy; and Ar is phenyl optionally substituted with halo.Type: GrantFiled: December 17, 1996Date of Patent: August 4, 1998Assignee: Pfizer Inc.Inventors: Hiroaki Wakabayashi, Yuji Shishido
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Patent number: 5434730Abstract: A spindle motor and recording medium assembly having a rotary shaft, and a rotary portion. The rotary portion includes a recording medium, a fixing member, a boss, and rotating motor elements including an annular magnet and a rotary yoke, wherein the boss secures the recording medium, wherein the rotary shaft and the boss are integrally joined together and the center of gravity of the rotary portion in a direction along the rotary shaft is positioned in a portion where the rotary shaft and the boss are connected to each other. In a preferred embodiment in which the recording medium is a hard disk, the hard disk is attached to the boss in such a position that a line running through the center of the thickness of the hard disk extends so as not to deviate from a portion where the rotary shaft and the boss are connected to each other.Type: GrantFiled: January 7, 1994Date of Patent: July 18, 1995Assignee: Sony CorporationInventor: Yuji Shishido
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Patent number: 5418231Abstract: This invention relates to novel pyrimido-benzothiazine derivative compounds. ##STR1## The compounds of the present invention inhibit the action of the lipoxygenase enzyme and are useful in the treatment or alleviation of inflammatory diseases, allergy and cardiovascular diseases in mammals. This invention also relates to pharmaceutical compositions comprising such compounds.Type: GrantFiled: June 28, 1993Date of Patent: May 23, 1995Assignee: Pfizer Inc.Inventors: Kaoru Shimada, Yuji Shishido