Patents by Inventor Akira Iwasaki
Akira Iwasaki 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).
-
Publication number: 20240151475Abstract: A heat exchanger includes: first plates; second plates disposed at intervals with each between a pair of the first plates adjacent to each to alternately form first flow paths and second flow paths; and a heat exchange promoting member in the first flow paths. At least one of the first plates and each second plate includes a plurality of protruding portions each of which is formed in a V shape in a plan view such that the protruding portion recesses in a corresponding one of the first flow paths and projects in a corresponding one of the second flow paths. Each protruding portion has a tip end portion and an opening portion arranged in a flow direction in the second flow path, and one of a pair of free end portions is positioned on a first inflow port side and the other is positioned on a first outflow port side.Type: ApplicationFiled: March 30, 2022Publication date: May 9, 2024Inventors: Yuu Suguro, Toshihiro Shimbayashi, Akira Ooura, Mitsuru Iwasaki, Eiki Hayashi, Mayumi Yamanaka
-
Patent number: 11969712Abstract: A catalyst for purification of exhaust gas in which Pd-based nanoparticles and ceria nanoparticles are supported on a composite metal oxide support containing alumina, ceria, and zirconia, wherein a molar ratio (Ce/Pd) of Ce and Pd supported on the support is 1 to 8, a proximity ? between Pd and Ce is 0.15 to 0.50, wherein the proximity ? is determined, based on Pd and Ce distribution maps in an element mapping image of energy dispersive X-ray analysis, by the following formula (1): ? = ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( ( I ? ( i , j ) - I ave ) ? ( T ? ( i , j ) - T ave ) ) ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( I ? ( i , j ) - I ave ) 2 - ? j = 0 N - 1 ? ? i = 0 M - 1 ? ( T ? ( i , j ) - T ave ) 2 , ( 1 ) a Pd dispersity after a heat-resistance test at 1050° C. for 25 hours is 0.8% or more.Type: GrantFiled: November 2, 2022Date of Patent: April 30, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoki Kumatani, Akira Morikawa, Masaoki Iwasaki, Miho Hatanaka, Taizo Yoshinaga, Masahide Miura, Takahiro Hayashi
-
Patent number: 11953851Abstract: In an image heating device having a plurality of heating blocks which are controllable independently in a longitudinal direction of a heater, an increase of the size of the heater can be suppressed, and temperatures of a plurality of heating block can be detected. The heater has a first temperature sensor corresponding to a first heating block, a second temperature sensor corresponding to a second heating block, a first electric conductor electrically coupled to the first temperature sensor, a second electric conductor electrically coupled to the second temperature sensor, and a common electric conductor electrically coupled to the first and second temperature sensors.Type: GrantFiled: April 13, 2023Date of Patent: April 9, 2024Assignee: Canon Kabushiki KaishaInventors: Yasuhiro Shimura, Akira Kato, Atsushi Iwasaki
-
Patent number: 11946975Abstract: According to one embodiment, a magnetic sensor includes a first sensor part. The first sensor part includes a first magnetic member, a first counter magnetic member, and a first magnetic element. A direction from the first magnetic member toward the first counter magnetic member is along a first direction. The first magnetic element includes one or a plurality of first extension parts. The first extension part includes a first magnetic layer, a first counter magnetic layer, and a first nonmagnetic layer. The first magnetic layer includes a first portion, a first counter portion, and a first middle portion. A direction from the first portion toward the first counter portion is along the first direction. The first middle portion is between the first portion and the first counter portion. The first nonmagnetic layer is between the first counter magnetic layer and at least a portion of the first middle portion.Type: GrantFiled: August 23, 2021Date of Patent: April 2, 2024Assignee: Kabushiki Kaisha ToshibaInventors: Hitoshi Iwasaki, Satoshi Shirotori, Akira Kikitsu, Yoshihiro Higashi
-
Publication number: 20220352093Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers, memory opening fill structures located within a respective memory opening vertically extending through the alternating stack in a memory array region, and support pillar structures vertically extending through the alternating stack. Each of the memory opening fill structures includes a respective vertical semiconductor channel and a respective memory film that contacts each layer within the alternating stack. Each of the support pillar structures includes a respective dummy vertical semiconductor channel, a respective dummy memory film, and at least one respective dielectric spacer material portion laterally surrounding the respective dummy memory film and interposed between the electrically conductive layers and the respective dummy memory film.Type: ApplicationFiled: June 13, 2022Publication date: November 3, 2022Inventors: Katsuo Yamada, Kakeru Tamai, Akira Iwasaki, Akira Fukunaga, Koichi Matsuno
-
Publication number: 20220314588Abstract: A laminated body is provided with a resinous base member, a lipophilic layer and a predetermined layer. The predetermined layer is located between the resinous base member and the lipophilic layer. The predetermined layer has a refractive index within a range of 1.42 to 1.49. The lipophilic layer has a surface which is 60 nm or less distant from the predetermined layer.Type: ApplicationFiled: February 7, 2022Publication date: October 6, 2022Applicant: Japan Aviation Electronics Industry, LimitedInventors: Shingo TAKATA, Toshihiro NINOKATA, Akira IWASAKI
-
Patent number: 10697334Abstract: A driving rotor is configured to rotate about a rotational shaft center in conjunction with a crankshaft. A driven rotor is configured to rotate about the rotational shaft center in conjunction with the camshaft. A deceleration mechanism is configured to change a relative rotational phase between the driving rotor and the driven rotor by using a driving force of an electric motor. The deceleration mechanism includes an internal gear portion, which includes an internal tooth extending radially inward, and an external gear portion, which includes an external tooth extending radially outward and engaging with the internal tooth. A linear expansion coefficient of the external gear portion is greater than a linear expansion coefficient of the internal gear portion.Type: GrantFiled: July 29, 2019Date of Patent: June 30, 2020Assignee: DENSO CORPORATIONInventors: Soichi Kinouchi, Akira Iwasaki
-
Patent number: 10662829Abstract: A housing is rotatable synchronously with a crankshaft of an engine. A plurality of external teeth arrangements is respectively shaped into a ring form and is formed integrally with the housing in one piece and is configured to mesh with a plurality of chains, respectively, each of which is wound around the crankshaft or a sprocket that is rotatable. A cam plate is connected to a camshaft of the engine and is rotatable relative to the housing. A plurality of stoppers is formed integrally with the housing in one piece while the stoppers are configured to limit relative rotation between the housing and the cam plate within a predetermined range when the stoppers contact the cam plate. Each stopper is placed at a position, at which the stopper does not overlap with any of the external teeth arrangements in a view taken in an axial direction of the housing.Type: GrantFiled: October 29, 2018Date of Patent: May 26, 2020Assignee: DENSO CORPORATIONInventors: Akira Iwasaki, Genki Suzuki
-
Publication number: 20200040778Abstract: A driving rotor is rotational about a rotational shaft center in conjunction with a crankshaft. A driven rotor is rotational about the rotational shaft center in conjunction with the camshaft. A deceleration mechanism is configured to change a relative rotational phase between the driving rotor and the driven rotor by using a driving force of an electric motor. The deceleration mechanism includes an internal gear portion, which includes an internal tooth formed inward in a radial direction, and an external gear portion, which includes an external tooth formed outward in a radial direction and engages with the internal tooth. A linear expansion coefficient of the external gear portion is larger than a linear expansion coefficient of the internal gear portion.Type: ApplicationFiled: July 29, 2019Publication date: February 6, 2020Inventors: Soichi KINOUCHI, Akira IWASAKI
-
Publication number: 20190136723Abstract: A housing is rotatable synchronously with a crankshaft of an engine. A plurality of external teeth arrangements is respectively shaped into a ring form and is formed integrally with the housing in one piece and is configured to mesh with a plurality of chains, respectively, each of which is wound around the crankshaft or a sprocket that is rotatable. A cam plate is connected to a camshaft of the engine and is rotatable relative to the housing. A plurality of stoppers is formed integrally with the housing in one piece while the stoppers are configured to limit relative rotation between the housing and the cam plate within a predetermined range when the stoppers contact the cam plate. Each stopper is placed at a position, at which the stopper does not overlap with any of the external teeth arrangements in a view taken in an axial direction of the housing.Type: ApplicationFiled: October 29, 2018Publication date: May 9, 2019Inventors: Akira IWASAKI, Genki SUZUKI
-
Patent number: 10088197Abstract: A water heating apparatus includes: a water heating circuit; a heater for heating the water heating circuit; and a controller for controlling the water heating apparatus. The water heating circuit includes a heat exchanger for heating a fluid including water and hot water, and a pipe for supplying the fluid via the heat exchanger. The controller is configured to drive the heater in a cleaning mode in which a cleaning liquid for cleaning an inside of the heat exchanger is supplied to the heat exchanger through the pipe.Type: GrantFiled: October 14, 2016Date of Patent: October 2, 2018Assignee: NORITZ CORPORATIONInventors: Toshihiko Hamagami, Yu Fujimoto, Shota Mizuno, Ryo Hasegawa, Yoshihiro Nunotani, Akira Iwasaki
-
Publication number: 20180250750Abstract: An iron base sintered alloy has a chemical composition including at least Fe, Cu and C, and a sintered structure including a residual austenite and a martensite. The sintered structure includes a precipitated Cu element that was dissolved in the martensite and that has been precipitated from the martensite. A method for manufacturing an iron base sintered alloy includes conducting a Cu precipitation treatment for a sintered alloy that has a chemical composition including at least Fe, Cu and C, and a sintered structure including a residual austenite and a martensite to precipitate Cu element dissolved in the martensite.Type: ApplicationFiled: February 28, 2018Publication date: September 6, 2018Inventors: Ken MATSUBARA, Hirotake HAMAMATSU, Hiroshi OKADA, Akira IWASAKI, Junya ASAOKA, Masanori AIKI, Naoto IGARASHI, Terukazu TOKUOKA, Hiroaki TERAI, Yuki TSUKAMOTO, Senichi SUMI
-
Patent number: 10012383Abstract: A water heater heats water with a combustion gas. An exhaust tube includes one end portion and the other end portion, is connected to the water heater at one end portion, and inside thereof is defined as an emission path for the combustion gas. An exhaust pipe is greater in outer diameter than the exhaust tube, and a part of the exhaust tube on a side of the other end portion is introduced in the inside thereof. An exhaust terminal is attached to an end portion of the exhaust pipe and has an exhaust port for exhausting the combustion gas to the outside. An exhaust straightening member is attached to the other end portion of the exhaust tube and has an opening portion for allowing the combustion gas to flow out toward the exhaust port.Type: GrantFiled: August 22, 2014Date of Patent: July 3, 2018Assignee: NORITZ CORPORATIONInventors: Takahide Hasegawa, Akira Iwasaki
-
Publication number: 20180044710Abstract: The present invention aims to provide a yeast that is genetically modified so as to more highly produce glutathione, and a method of producing glutathione utilizing the yeast. The present invention provides a method of producing glutathione, including culturing a yeast whose thiol oxidase activity is increased as compared to the parent strain in a culture medium to produce glutathione, and recovering glutathione from the cultured broth obtained.Type: ApplicationFiled: March 4, 2016Publication date: February 15, 2018Applicants: KANEKA CORPORATION, NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITYInventors: Kiyotaka HARA, Akihiko KONDO, Akira IWASAKI, Yuichi IWAMOTO
-
Patent number: 9856761Abstract: A valve timing controller includes a first housing; a second housing fixed to the first housing; a driven rotor inside of a driving rotor defined by the first housing and the second housing; a revolving actuator disposed on an extension of an axial direction of the driven rotor; a deceleration mechanism; and an engaging part that is engaged with a lock jig locking a relative rotation between the driving rotor and an input rotor of the deceleration mechanism in advance of assembling the valve timing controller to an internal-combustion engine. The engaging part is located on a radially inner side compared with an insertion part of the revolving actuator inserted in a hole of a cover component of the internal-combustion engine.Type: GrantFiled: March 29, 2016Date of Patent: January 2, 2018Assignee: DENSO CORPORATIONInventor: Akira Iwasaki
-
Publication number: 20170108242Abstract: A water heating apparatus includes: a water heating circuit; a heater for heating the water heating circuit; and a controller for controlling the water heating apparatus. The water heating circuit includes a heat exchanger for heating a fluid including water and hot water, and a pipe for supplying the fluid via the heat exchanger. The controller is configured to drive the heater in a cleaning mode in which a cleaning liquid for cleaning an inside of the heat exchanger is supplied to the heat exchanger through the pipe.Type: ApplicationFiled: October 14, 2016Publication date: April 20, 2017Applicant: NORITZ CORPORATIONInventors: Toshihiko HAMAGAMI, Yu FUJIMOTO, Shota MIZUNO, Ryo HASEGAWA, Yoshihiro NUNOTANI, Akira IWASAKI
-
Publication number: 20160298506Abstract: A valve timing controller includes a first housing; a second housing fixed to the first housing; a driven rotor inside of a driving rotor defined by the first housing and the second housing; a revolving actuator disposed on an extension of an axial direction of the driven rotor; a deceleration mechanism; and an engaging part that is engaged with a lock jig locking a relative rotation between the driving rotor and an input rotor of the deceleration mechanism in advance of assembling the valve timing controller to an internal-combustion engine. The engaging part is located on a radially inner side compared with an insertion part of the revolving actuator inserted in a hole of a cover component of the internal-combustion engine.Type: ApplicationFiled: March 29, 2016Publication date: October 13, 2016Inventor: Akira IWASAKI
-
Patent number: 9376667Abstract: Water-forming NADH oxidase derived from Streptococcus mutans should be further improved in terms of stability for practical use in industrial production. An object of the present invention is to provide an enzyme that is obtained through modification of a water-forming NADH oxidase, which is useful as an NAD+ regeneration system for stereoselective oxidation catalyzed by an oxidoreductase, by protein engineering techniques so that the enzyme can withstand long-term use without exhibiting a reduction of its activity for the regeneration of NAD+, that is, an enzyme having improved stability, and to provide a method for efficiently producing a useful substance such as an optically active alcohol or amino acid. The present invention relates to an enzyme modification method that can improve the stability of water-forming NADH oxidase derived from Streptococcus mutans by appropriately introducing mutation.Type: GrantFiled: February 1, 2016Date of Patent: June 28, 2016Assignee: Kaneka CorporationInventors: Shinichi Yoshida, Akira Iwasaki, Motohisa Washida, Tozo Nishiyama, Daisuke Moriyama, Naoaki Taoka
-
Publication number: 20160145585Abstract: Water-forming NADH oxidase derived from Streptococcus mutans should be further improved in terms of stability for practical use in industrial production. An object of the present invention is to provide an enzyme that is obtained through modification of a water-forming NADH oxidase, which is useful as an NAD+ regeneration system for stereoselective oxidation catalyzed by an oxidoreductase, by protein engineering techniques so that the enzyme can withstand long-term use without exhibiting a reduction of its activity for the regeneration of NAD+, that is, an enzyme having improved stability, and to provide a method for efficiently producing a useful substance such as an optically active alcohol or amino acid. The present invention relates to an enzyme modification method that can improve the stability of water-forming NADH oxidase derived from Streptococcus mutans by appropriately introducing mutation.Type: ApplicationFiled: February 1, 2016Publication date: May 26, 2016Inventors: Shinichi Yoshida, Akira Iwasaki, Motohisa Washida, Tozo Nishiyama, Daisuke Moriyama, Naoaki Taoka
-
Patent number: 9315782Abstract: Water-forming NADH oxidase derived from Streptococcus mutans should be further improved in terms of stability for practical use in industrial production. An object of the present invention is to provide an enzyme that is obtained through modification of a water-forming NADH oxidase, which is useful as an NAD+ regeneration system for stereoselective oxidation catalyzed by an oxidoreductase, by protein engineering techniques so that the enzyme can withstand long-term use without exhibiting a reduction of its activity for the regeneration of NAD+, that is, an enzyme having improved stability, and to provide a method for efficiently producing a useful substance such as an optically active alcohol or amino acid. The present invention relates to an enzyme modification method that can improve the stability of water-forming NADH oxidase derived from Streptococcus mutans by appropriately introducing mutation.Type: GrantFiled: January 19, 2011Date of Patent: April 19, 2016Assignee: Kaneka CorporationInventors: Shinichi Yoshida, Akira Iwasaki, Motohisa Washida, Tozo Nishiyama, Daisuke Moriyama, Naoaki Taoka