Patents by Inventor Yasuaki Maeda
Yasuaki Maeda 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: 20240101572Abstract: The present invention provides a compound having a PLD inhibitory activity. The present invention provides a compound of the following structural formula, and the like, or a pharmaceutically acceptable salt thereof. wherein each symbol is as defined in the description.Type: ApplicationFiled: June 15, 2023Publication date: March 28, 2024Inventors: Masahiro YOKOTA, Tetsudo KAYA, Makoto TORIZUKA, Yasuaki NAKAYAMA, Taku IKENOGAMI, Katsuya MAEDA, Kazuki OTAKE, Kentaro SAKURAI
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Publication number: 20230054960Abstract: A side-filling resin composition is used to form a side-filling member to be interposed between a base member and a peripheral edge portion of a surface, facing the base member, of a mounted component that is surface-mounted on the base member. The side-filling resin composition has photocurability.Type: ApplicationFiled: January 29, 2021Publication date: February 23, 2023Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yusuke FUKAMOTO, Yasushi YAMADA, Yasuaki MAEDA
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Patent number: 8940921Abstract: [Problem] There are provided a method for production of a fatty acid alkyl ester and a system therefor, in which a high yield of the fatty acid alkyl ester is achieved even without using any special equipment and separation of a fatty acid alkyl ester phase from a glycerin phase can be carried out within an extremely short period of time. [Means to solve] The method for producing a fatty acid alkyl ester of the present invention comprises subjecting a starting oil to an ester exchange reaction with a lower alkyl alcohol in the presence of a catalyst to generate the fatty acid alkyl ester, wherein the ester exchange reaction step is carried out in a homogeneous phase system by adding an organic solvent selected from acetone, isopropanol and a mixture thereof to a reaction system.Type: GrantFiled: March 14, 2010Date of Patent: January 27, 2015Assignee: Osaka Prefecture University Public CorporationInventors: Yasuaki Maeda, Hiroshi Bandow, Norimichi Takenaka, Yasuhiro Sadanaga, Kenji Okitsu
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Publication number: 20110319651Abstract: [Problem] There are provided a method for production of a fatty acid alkyl ester and a system therefor, in which a high yield of the fatty acid alkyl ester is achieved even without using any special equipment and separation of a fatty acid alkyl ester phase from a glycerin phase can be carried out within an extremely short period of time. [Means to solve] The method for producing a fatty acid alkyl ester of the present invention comprises subjecting a starting oil to an ester exchange reaction with a lower alkyl alcohol in the presence of a catalyst to generate the fatty acid alkyl ester, wherein the ester exchange reaction step is carried out in a homogeneous phase system by adding an organic solvent selected from acetone, isopropanol and a mixture thereof to a reaction system.Type: ApplicationFiled: March 14, 2010Publication date: December 29, 2011Applicant: Osaka Prefecture University Public CorporationInventors: Yasuaki Maeda, Hiroshi Bandow, Norimichi Takenaka, Yasuhiro Sadanaga, Kenji Okitsu
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Publication number: 20100227249Abstract: A method for producing an electrode catalyst for a fuel cell, including: an immersion step (step A) for immersing one or more selected from a catalyst component, a carrier of conductive particles, and a polymer electrolyte in a solvent; a catalyst loading step (step B) for loading the catalyst component on the carrier; and a reaction site forming step (step C) for depositing the polymer electrolyte onto the catalyst-loaded carrier, characterized by irradiating ultrasonic waves in at least one of steps A, B, and C. In the present invention, by suppressing a catalyst from being loaded inside the pores of a carrier, a method for producing an electrode catalyst for a fuel cell which increases the utilization rate of a noble metal catalyst and which improves power generation performance, an electrode catalyst for a fuel cell, and a solid polymer fuel cell provided therewith which can obtain high cell output can be obtained.Type: ApplicationFiled: June 15, 2007Publication date: September 9, 2010Inventors: Tetsuo Kawamura, Hiroaki Takahashi, Yasuaki Maeda, Rokuro Nishimura, Kenji Okitsu
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Patent number: 7454771Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.Type: GrantFiled: October 26, 2007Date of Patent: November 18, 2008Assignee: Sony CorporationInventors: Naohiro Netsu, Yoshitaka Aoki, Tetsu Watanabe, Kazuhiko Fujiie, Yasuaki Maeda, Takuya Kaeriyama
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Patent number: 7394737Abstract: The present invention relates to a skew control method and a skew control unit by which stable skew control can be performed with a simple configuration without the need for a dedicated skew sensor. Focus drive voltages V1 and V2 are measured at a plurality of points P1 and P2 set by moving an optical pick-up 31 in the radial direction of an optical disc 2 in a state where a focus servo of the optical pick-up 31 is ON, and skew angle control is performed so that V1 and V2 are equal to each other.Type: GrantFiled: September 9, 2004Date of Patent: July 1, 2008Assignee: Sony CorporationInventors: Yasuaki Maeda, Masahiro Shigenobu
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Publication number: 20080098416Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.Type: ApplicationFiled: October 26, 2007Publication date: April 24, 2008Applicant: Sony CorporationInventors: Naohiro NETSU, Yoshitaka AOKI, Tetsu WATANABE, Kazuhiko FUJIIE, Yasuaki MAEDA, Takuya KAERIYAMA
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Patent number: 7305689Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.Type: GrantFiled: July 15, 2004Date of Patent: December 4, 2007Assignee: Sony CorporationInventors: Naohiro Netsu, Yoshitaka Aoki, Tetsu Watanabe, Kazuhiko Fujiie, Yasuaki Maeda, Takuya Kaeriyama
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Publication number: 20060215513Abstract: The present invention relates to an optical recording method for recording data on an optical disc by using a laser beam. When the optical disc is inserted into an optical recording device (step S1), a test writing area PCA (Power Calibration Area) that can be used for an OPC (Optimum Power Calibration) on the optical disc is searched and an optical pickup is allowed to stand by at that position (step S4). Then, when an input of a recording operation of data is received (step S6), an OPC operation is carried out at the stand-by position (step S7). After an optimum power is obtained, the optical pickup is moved to a data recording area on the optical disc (step S10) to record the data in the data recording area of the optical disc by the optical pickup (step S11).Type: ApplicationFiled: December 10, 2003Publication date: September 28, 2006Inventors: Takashi Fujimoto, Masahiro Shigenobu, Kenichiro Aridome, Yasuaki Maeda, Kensuke Fujimoto, Hideki Mawatari
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Publication number: 20060083134Abstract: This invention relates illustratively to a portable video recorder that uses an optical disk. The inventive recorder is arranged to switch the degree of power conservation depending on the length of an idle time T2 during intermittent recording and/or reproduction of continuous data to and/or from the optical disk.Type: ApplicationFiled: November 19, 2003Publication date: April 20, 2006Inventors: Katsumi Matsuno, Kenichiro Aridome, Yasuaki Maeda
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Patent number: 6884900Abstract: There is provided a method for producing fatty acid alcohol ester useful as a substitute fuel for light oil in which an ester interchange reaction between fats or oils and alcohol is carried out in a reactor 1 by applying ultrasonic irradiation at a frequency of 15 to 100 kHz and irradiation intensity of 0.5 to 20 W/cm2 in the presence of a catalyst, followed by an application of ultrasonic irradiation at a frequency of 200 to 3,000 kHz and irradiation intensity of 0.5 to 20 W/cm2 to the reaction product in a separation tank 4 to separate fatty acid alcohol ester and glycerol. Such ultrasonic irradiation in the separation tank 4 may be applied to an interface between fatty acid alcohol ester and glycerol.Type: GrantFiled: October 6, 2003Date of Patent: April 26, 2005Assignee: Cosmo Engineering Co., Ltd.Inventors: Yasuaki Maeda, Mircea Vinatoru, Carmen Eugenia Stavarach, Kunio Iwai, Hideki Oshige
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Publication number: 20050063262Abstract: The present invention relates to a skew control method and a skew control unit by which stable skew control can be performed with a simple configuration without the need for a dedicated skew sensor. Focus drive voltages V1 and V2 are measured at a plurality of points P1 and P2 set by moving an optical pick-up 31 in the radial direction of an optical disc 2 in a state where a focus servo of the optical pick-up 31 is ON, and skew angle control is performed so that V1 and V2 are equal to each other.Type: ApplicationFiled: September 9, 2004Publication date: March 24, 2005Applicant: Sony CorporationInventors: Yasuaki Maeda, Masahiro Shigenobu
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Publication number: 20040228263Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.Type: ApplicationFiled: July 15, 2004Publication date: November 18, 2004Inventors: Naohiro Netsu, Yoshitaka Aoki, Tetsu Watanabe, Kazuhiko Fujiie, Yasuaki Maeda, Takuya Kaeriyama
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Patent number: 6785222Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.Type: GrantFiled: October 29, 2001Date of Patent: August 31, 2004Assignee: Sony CorporationInventors: Naohiro Netsu, Yoshitaka Aoki, Tetsu Watanabe, Kazuhiko Fujiie, Yasuaki Maeda, Takuya Kaeriyama
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Publication number: 20040159537Abstract: There is provided a method for producing fatty acid alcohol ester useful as a substitute fuel for light oil in which an ester interchange reaction between fats or oils and alcohol is carried out in a reactor 1 by applying ultrasonic irradiation at a frequency of 15 to 100 kHz and irradiation intensity of 0.5 to 20 W/cm2 in the presence of a catalyst, followed by an application of ultrasonic irradiation at a frequency of 200 to 3,000 kHz and irradiation intensity of 0.5 to 20 W/cm2 to the reaction product in a separation tank 4 to separate fatty acid alcohol ester and glycerol. Such ultrasonic irradiation in the separation tank 4 may be applied to an interface between fatty acid alcohol ester and glycerol.Type: ApplicationFiled: October 6, 2003Publication date: August 19, 2004Inventors: Yasuaki Maeda, Mircea Vinatoru, Carmen Eugenia Stavarache, Kunio Iwai, Hideki Oshige
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Patent number: 6747943Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.Type: GrantFiled: October 29, 2001Date of Patent: June 8, 2004Assignee: Sony CorporationInventors: Naohiro Netsu, Yoshitaka Aoki, Tetsu Watanabe, Kazuhiko Fujiie, Yasuaki Maeda, Takuya Kaeriyama
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Patent number: 6704275Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.Type: GrantFiled: October 29, 2001Date of Patent: March 9, 2004Assignee: Sony CorporationInventors: Naohiro Netsu, Yoshitaka Aoki, Tetsu Watanabe, Kazuhiko Fujiie, Yasuaki Maeda, Takuya Kaeriyama
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Publication number: 20020071383Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.Type: ApplicationFiled: January 22, 2002Publication date: June 13, 2002Inventors: Naohiro Netsu, Yoshitaka Aoki, Tetsu Watanabe, Kazuhiko Fujiie, Yasuaki Maeda, Takuya Kaeriyama
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Publication number: 20020071382Abstract: An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed.Type: ApplicationFiled: January 16, 2002Publication date: June 13, 2002Inventors: Naohiro Netsu, Yoshitaka Aoki, Tetsu Watanabe, Kazuhiko Fujiie, Yasuaki Maeda, Takuya Kaeriyama