Patents by Inventor Eiji Saitou
Eiji Saitou 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: 11682375Abstract: A speaker system includes a wearable speaker capable of outputting a first sound which is a voice of a communication partner of a talker and a second sound, a microphone, and a sound processing device which processes a sound output from the wearable speaker and a sound picked up by the microphone. The sound processing device generates a reference signal by synthesizing a first signal indicating the first sound and a second signal indicating the second sound, outputs the first signal and the second signal to the wearable speaker, obtains a sound pickup signal including the voice of the talker from the microphone, performs, on the sound pickup signal, a process of cancelling the sound component output from the wearable speaker by using the reference signal, and outputs the sound pickup signal on which the cancellation process has been performed.Type: GrantFiled: August 6, 2019Date of Patent: June 20, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Udeni Sangakkara, Takuto Takizawa, Eiji Saitou, Yukiharu Wakiguchi, Minoru Umesako
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Publication number: 20220068251Abstract: A speaker system includes a wearable speaker capable of outputting a first sound which is a voice of a communication partner of a talker and a second sound, a microphone, and a sound processing device which processes a sound output from the wearable speaker and a sound picked up by the microphone. The sound processing device generates a reference signal by synthesizing a first signal indicating the first sound and a second signal indicating the second sound, outputs the first signal and the second signal to the wearable speaker, obtains a sound pickup signal including the voice of the talker from the microphone, performs, on the sound pickup signal, a process of cancelling the sound component output from the wearable speaker by using the reference signal, and outputs the sound pickup signal on which the cancellation process has been performed.Type: ApplicationFiled: August 6, 2019Publication date: March 3, 2022Inventors: Udeni SANGAKKARA, Takuto TAKIZAWA, Eiji SAITOU, Yukiharu WAKIGUCHI, Minoru UMESAKO
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Patent number: 11251499Abstract: A battery cover includes: a case for housing a battery; and a rib formed on an inner peripheral face of the case to form a first space between the inner peripheral face of the case and an outer peripheral face of the battery. The case has an air hole that communicates the inside and outside of the case, a first housing part for housing a positive electrode of the battery, and a second housing part for housing a negative electrode of the battery. The air hole is disposed in a position in the case closer to the second housing part than to the first housing part.Type: GrantFiled: July 5, 2017Date of Patent: February 15, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kunihiko Itou, Yukiharu Wakiguchi, Eiji Saitou, Kazuhiko Miura, Masahiro Mizuta
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Patent number: 10983548Abstract: An electronic device includes a housing, and an operation member mounted on an inner surface of the housing. The housing includes a projection inwardly projected from a main surface of the housing and a wall erected on the main surface and having a light guide hole through which light passes. The operation member includes a holding part extending along the main surface from the projection to the wall, an erecting part erected from the holding part along the wall, a transmission part engaged with peripheral edges of the light guide hole while being fitted into the light guide hole and configured to transmit the light, and a receiving part configured to receive a user's operation from an outside of the housing.Type: GrantFiled: May 16, 2017Date of Patent: April 20, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Hiroya Morikawa, Eiji Saitou
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Publication number: 20190267592Abstract: A battery cover includes: a case for housing a battery; and a rib formed on an inner peripheral face of the case to form a first space between the inner peripheral face of the case and an outer peripheral face of the battery. The case has an air hole that communicates the inside and outside of the case, a first housing part for housing a positive electrode of the battery, and a second housing part for housing a negative electrode of the battery. The air hole is disposed in a position in the case closer to the second housing part than to the first housing part.Type: ApplicationFiled: July 5, 2017Publication date: August 29, 2019Inventors: KUNIHIKO ITOU, YUKIHARU WAKIGUCHI, EIJI SAITOU, KAZUHIKO MIURA, MASAHIRO MIZUTA
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Publication number: 20190121384Abstract: An electronic device includes a housing, and an operation member mounted on an inner surface of the housing. The housing includes a projection inwardly projected from a main surface of the housing and a wall erected on the main surface and having a light guide hole through which light passes. The operation member includes a holding part extending along the main surface from the projection to the wall, an erecting part erected from the holding part along the wall, a transmission part engaged with peripheral edges of the light guide hole while being fitted into the light guide hole and configured to transmit the light, and a receiving part configured to receive a user's operation from an outside of the housing.Type: ApplicationFiled: May 16, 2017Publication date: April 25, 2019Inventors: HIROYA MORIKAWA, EIJI SAITOU
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Patent number: 9551890Abstract: Provided is an electronic apparatus having the waterproof structure. The electronic apparatus includes: a housing; a transparent panel which has an image display area; and a plurality of strip-shaped waterproof spacers fixed adherently between the housing and the transparent panel, and fixed adherently to an outer periphery of the image display area at the transparent panel side. A clearance between the waterproof spacers adjacent to each other is filled with a filler. In the electronic apparatus, a hole is formed in the housing such that the hole overlaps with the clearance and a portion of the waterproof spacer, and the hole is filled with the filler.Type: GrantFiled: June 17, 2014Date of Patent: January 24, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shuji Yamashita, Yukiharu Wakiguchi, Eiji Saitou, Kazutaka Goto
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Publication number: 20150185537Abstract: Provided is an electronic apparatus having the waterproof structure. The electronic apparatus includes: a housing; a transparent panel which has an image display area; and a plurality of strip-shaped waterproof spacers fixed adherently between the housing and the transparent panel, and fixed adherently to an outer periphery of the image display area at the transparent panel side. A clearance between the waterproof spacers adjacent to each other is filled with a filler. In the electronic apparatus, a hole is formed in the housing such that the hole overlaps with the clearance and a portion of the waterproof spacer, and the hole is filled with the filler.Type: ApplicationFiled: June 17, 2014Publication date: July 2, 2015Inventors: Shuji YAMASHITA, Yukiharu WAKIGUCHI, Eiji SAITOU, Kazutaka GOTO
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Publication number: 20140298321Abstract: An installation control method executed by a computer, the installation control method includes: extracting installation information related to an install process of each of a plurality of software modules to be installed onto an apparatus; calculating a load with respect to the install process on the apparatus, in installing the plurality of software modules in each of a plurality execution sequence candidates of an install process in accordance with the installation information; and selecting an execution sequence that is executed by the apparatus, among the execution sequence candidates, in accordance with the load.Type: ApplicationFiled: January 27, 2014Publication date: October 2, 2014Applicant: FUJITSU LIMITEDInventors: Koji Morino, Yoshitaka Higuchi, Noboru Amano, Kiyomi Kimura, Hideo Abotani, Eiji Saitou
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Publication number: 20130063050Abstract: An electronic device capable of displaying a light pattern in a section of a surface by turning on a light source includes: the light source; a first light-transmissive colored layer provided on the surface and having reflectance and transmittance that peak in a wavelength range of light of a first color; and a second light-transmissive colored layer provided on a path of light that is emitted from the light source and reaches the first light-transmissive colored layer, the second light-transmissive colored layer having transmittance that peaks in a wavelength range of light of a second color different from the first color. The second light-transmissive colored layer has light transmission characteristics adjusted such that light of a desired color exits the section of the surface where the light emitted from the light source reaches when the light source is turned on.Type: ApplicationFiled: April 20, 2012Publication date: March 14, 2013Applicant: PANASONIC CORPORATIONInventors: Hiroya MORIKAWA, Eiji SAITOU, Kazuhiko SHIBATA
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Patent number: 7459035Abstract: To provide a rotor material preferable for a steam turbine of which main steam temperature is 675° C. or more, particularly exceeding 700° C., and a steam turbine plant having a rotor formed by the material, the invention provides a steam turbine plant including a very-high-pressure turbine of which steam inlet temperature is 675 to 725° C. and steam outlet temperature is 650° C. or less, a high-pressure turbine, and a medium-low-pressure turbine, wherein a rotor of the very-high-pressure turbine is formed from a forged material of NiFe-base alloy containing: 14 to 18 weight % Cr, 15 to 45 weight % Fe, 1.0 to 2.0 weight % Al, 1.0 to 1.8 weight % Ti, C and N of which the sum is 0.05 or less weight %, and Nb in the range specified by the formula: 3.5?(Fe weight %)/20<(Nb weight %)<4.5?(Fe weight %)/20.Type: GrantFiled: June 10, 2004Date of Patent: December 2, 2008Assignee: Hitachi, Ltd.Inventors: Shinya Imano, Hiroyuki Doi, Hirotsugu Kawanaka, Eiji Saitou
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Patent number: 7429164Abstract: A turbine moving blade has a blade portion extending from the basal portion to the tip of the moving blade. The blade root portion is formed at the basal portion of the blade portion and engaged with a corresponding disk groove of a turbine rotor on a one-by-one basis, and the integral cover is formed at the tip of the blade portion integrally with the blade portion. The integral cover includes at least a pair of pressure and suction sloped surfaces inclined relative to the direction of the rotational axis of a turbine so as to restrain the elastic restoring force of the moving blade torsionally deformed at the time of installation of the moving blade by bringing the integral covers of mutually adjacent blades into contact.Type: GrantFiled: September 2, 2002Date of Patent: September 30, 2008Assignee: Hitachi, Ltd.Inventors: Yutaka Yamashita, Kiyoshi Namura, Eiji Saitou, Masakazu Takasumi, Masato Machida, Hideo Yoda, Kazuo Ikeuchi
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Patent number: 7182577Abstract: A set of turbine rotor blades is arranged on a rotor disk. Each rotor disk has blade profile, root parts which is fitted axially in an axial disk groove formed circumferenctially in the rotor disk, and an integral cover formed at the outer edge of the blade profile part. A front end surface, faced in a direction the rotor disk rotates, of the integral cover is inclined to a direction in which the root part of the turbine rotor blade is fitted in the disk groove of the rotor disk. The sum of circumferential lengths of the integral covers is greater than a circle at which the integral covers are joined to the blade profile parts. Adjacent integral covers are brought into contact with each other by the blade profile parts that are twisted when root parts of the turbine rotor blades are fitted axially in the disk grooves.Type: GrantFiled: August 26, 2005Date of Patent: February 27, 2007Assignee: Hitachi, Ltd.Inventors: Yutaka Yamashita, Eiji Saitou, Kiyoshi Namura, Hideo Yoda
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Publication number: 20060245918Abstract: The invention is intended to reduce the profile loss. For that purpose, according to the invention, a plurality of turbine blades are arranged in the circumferential direction of a turbine driven by a working fluid. Each of the turbine blade is formed such that the curvature of a blade suction surface, which is defined by the reciprocal of the radius of curvature of a blade surface on the blade suction surface side, is decreased monotonously from a blade leading edge defined as the upstream-most point of the blade in the axial direction toward a blade trailing edge defined as the downstream-most point of the blade in the axial direction.Type: ApplicationFiled: January 12, 2006Publication date: November 2, 2006Inventors: Shigeki Senoo, Yoshio Sikano, Eiji Saitou, Kiyoshi Segawa, Sou Shioshita
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Publication number: 20060177314Abstract: A set of turbine rotor blades is arranged on a rotor disk. Each rotor disk has blade profile, root parts which is fitted axially in an axial disk groove formed circumferenctially in the rotor disk, and an integral cover formed at the outer edge of the blade profile part. A front end surface, faced in a direction the rotor disk rotates, of the integral cover is inclined to a direction in which the root part of the turbine rotor blade is fitted in the disk groove of the rotor disk. The sum of circumferential lengths of the integral covers is greater than a circle at which the integral covers are joined to the blade profile parts. Adjacent integral covers are brought into contact with each other by the blade profile parts that are twisted when root parts of the turbine rotor blades are fitted axially in the disk grooves.Type: ApplicationFiled: August 26, 2005Publication date: August 10, 2006Inventors: Yutaka Yamashita, Eiji Saitou, Kiyoshi Namura, Hideo Yoda
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Publication number: 20060127221Abstract: A turbine moving blade has a blade portion extending from the basal portion to the tip of the moving blade. The blade root portion is formed at the basal portion of the blade portion and engaged with a corresponding disk groove of a turbine rotor on a one-by-one basis, and the integral cover is formed at the tip of the blade portion integrally with the blade portion. The integral cover includes at least a pair of pressure and suction sloped surfaces inclined relative to the direction of the rotational axis of a turbine so as to restrain the elastic restoring force of the moving blade torsionally deformed at the time of installation of the moving blade by bringing the integral covers of mutually adjacent blades into contact.Type: ApplicationFiled: September 2, 2002Publication date: June 15, 2006Inventors: Yutaka Yamashita, Kiyoshi Namura, Eiji Saitou, Masakazu Takasumi, Masato Machida, Hideo Yoda, Kazuo Ikeuchi
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Patent number: 7018174Abstract: The invention is intended to reduce the profile loss. For that purpose, according to the invention, a plurality of turbine blades are arranged in the circumferential direction of a turbine driven by a working fluid. Each of the turbine blade is formed such that the curvature of a blade suction surface, which is defined by the reciprocal of the radius of curvature of a blade surface on the blade suction surface side, is decreased monotonously from a blade leading edge defined as the upstream-most point of the blade in the axial direction toward a blade trailing edge defined as the downstream-most point of the blade in the axial direction.Type: GrantFiled: October 10, 2001Date of Patent: March 28, 2006Assignee: Hitachi, Ltd.Inventors: Shigeki Senoo, Yoshio Sikano, Eiji Saitou, Kiyoshi Segawa, Sou Shioshita
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Publication number: 20040253102Abstract: To provide a rotor material preferable for a steam turbine of which main steam temperature is 675° C. or more, particularly exceeding 700° C., and a steam turbine plant having a rotor formed by the material, the invention provides a steam turbine plant including a very-high-pressure turbine of which steam inlet temperature is 675 to 725° C. and steam outlet temperature is 650° C. or less, a high-pressure turbine, and a medium-low-pressure turbine, wherein a rotor of the very-high-pressure turbine is formed from a forged material of NiFe-base alloy containing: 14 to 18 weight % Cr, 15 to 45 weight % Fe, 1.0 to 2.0 weight % Al, 1.0 to 1.8 weight % Ti, C and N of which the sum is 0.05 or less weight %, and Nb in the range specified by the formula: 3.5−(Fe weight %)/20<(Nb weight %)<4.5−(Fe weight %)/20.Type: ApplicationFiled: June 10, 2004Publication date: December 16, 2004Inventors: Shinya Imano, Hiroyuki Doi, Hirotsugu Kawanaka, Eiji Saitou