Patents by Inventor Ryuuta Tanaka
Ryuuta Tanaka 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).
-
Patent number: 11236630Abstract: An axial compressor includes: a casing having a tubular shape; variable stator vanes each having a vane shaft as a swing center, provided in the casing as stator vanes or inlet guide vanes, and arranged in a circumferential direction of the casing; rotor blades provided on a trailing edges side of the variable stator vanes in the casing and arranged in the circumferential direction of the casing; and a plasma actuator configured to generate a plasma annularly distributed in the circumferential direction of the casing, the plasma actuator being attached on an inner circumferential surface of the casing and intersects with a clearance between each variable stator vane and the inner circumferential surface of the casing.Type: GrantFiled: June 17, 2020Date of Patent: February 1, 2022Assignee: IHI CorporationInventors: Haruki Hosaka, Nozomi Tanaka, Ryuuta Tanaka, Takayuki Hazu, Dai Kato, Daisuke Sato
-
Patent number: 10865804Abstract: Provided is a centrifugal compressor impeller that includes blades extending from an inlet to an outlet for a fluid. Each of the blades of the impeller includes, when a distribution of blade angles of a tip is viewed in a direction in which the tip extends from a tip inlet to a tip outlet for the tip, a constant blade angle region in which the blade angles are constant. A start point on the inlet side of the constant blade angle region is set at a position spaced apart from the tip inlet.Type: GrantFiled: February 1, 2017Date of Patent: December 15, 2020Assignee: IHI CorporationInventors: Chihiro Mikami, Ryuuta Tanaka
-
Publication number: 20200308974Abstract: An axial compressor includes: a casing having a tubular shape; variable stator vanes each having a vane shaft as a swing center, provided in the casing as stator vanes or inlet guide vanes, and arranged in a circumferential direction of the casing; rotor blades provided on a trailing edges side of the variable stator vanes in the casing and arranged in the circumferential direction of the casing; and a plasma actuator configured to generate a plasma annularly distributed in the circumferential direction of the casing, the plasma actuator being attached on an inner circumferential surface of the casing and intersects with a clearance between each variable stator vane and the inner circumferential surface of the casing.Type: ApplicationFiled: June 17, 2020Publication date: October 1, 2020Applicant: IHI CorporationInventors: Haruki Hosaka, Nozomi Tanaka, Ryuuta Tanaka, Takayuki Hazu, Dai Kato, Daisuke Sato
-
Patent number: 10361569Abstract: The present invention is a power storage service system including: quantitatively grasping the time leading up to the expression of the abnormality; capable determining possible or impossible of avoiding stopping of the function of the assembled battery system. According to the invention, a maintenance operator and a maintenance service supplier of the assembled battery system have a time margin to plan a response schedule and to prepare responding, and it can reduce the cost of responding to the maintenance by reducing and optimizing the number of response.Type: GrantFiled: December 13, 2016Date of Patent: July 23, 2019Assignee: Yokogawa Electric CorporationInventors: Hironori Hayashizaki, Satoshi Yoshitake, Ryuuta Tanaka, Jun Murai, Hideaki Horie
-
Publication number: 20180347581Abstract: Provided is a centrifugal compressor impeller that includes blades extending from an inlet to an outlet for a fluid. Each of the blades of the impeller includes, when a distribution of blade angles of a tip is viewed in a direction in which the tip extends from a tip inlet to a tip outlet for the tip, a constant blade angle region in which the blade angles are constant. A start point on the inlet side of the constant blade angle region is set at a position spaced apart from the tip inlet.Type: ApplicationFiled: February 1, 2017Publication date: December 6, 2018Applicant: IHI CorporationInventors: Chihiro MIKAMI, Ryuuta TANAKA
-
Patent number: 10048624Abstract: This conductive endless belt can suppress a reduction in toner releasability. The conductive endless belt is used in an image forming apparatus and includes at least an endless base layer and a surface layer formed on an outermost surface of an outer periphery of the base layer. The surface layer is formed from a resin composition including ultraviolet curable resin and silicone resin. The silicone resin includes polysiloxane containing, per molecule, 4 or more of at least one of an acryloyl group and a methacryloyl group.Type: GrantFiled: April 30, 2015Date of Patent: August 14, 2018Assignee: BRIDGESTONE CORPORATIONInventors: Takashi Ogura, Tatsuya Urakawa, Ryuuta Tanaka
-
Publication number: 20170170668Abstract: The present invention is a power storage service system including: quantitatively grasping the time leading up to the expression of the abnormality; capable determining possible or impossible of avoiding stopping of the function of the assembled battery system. According to the invention, a maintenance operator and a maintenance service supplier of the assembled battery system have a time margin to plan a response schedule and to prepare responding, and it can reduce the cost of responding to the maintenance by reducing and optimizing the number of response.Type: ApplicationFiled: December 13, 2016Publication date: June 15, 2017Applicant: YOKOGAWA ELECTRIC CORPORATIONInventors: Hironori HAYASHIZAKI, Satoshi YOSHITAKE, Ryuuta TANAKA, Jun MURAI, Hideaki HORIE
-
Publication number: 20170045845Abstract: This conductive endless belt can suppress a reduction in toner releasability. The conductive endless belt is used in an image forming apparatus and includes at least an endless base layer and a surface layer formed on an outermost surface of an outer periphery of the base layer. The surface layer is formed from a resin composition including ultraviolet curable resin and silicone resin. The silicone resin includes polysiloxane containing, per molecule, 4 or more of at least one of an acryloyl group and a methacryloyl group.Type: ApplicationFiled: April 30, 2015Publication date: February 16, 2017Applicant: BRIDGESTONE CORPORATIONInventors: Takashi OGURA, Tatsuya URAKAWA, Ryuuta TANAKA
-
Patent number: 9377514Abstract: A secondary-battery maximum-capacity measuring apparatus, includes: a current dependency processing unit configured to convert an inter-terminal voltage and an open cell voltage of a secondary battery into values without depending on a load current based on an amount of change in relative value of a voltage during a time period when a constant current is drawn from the secondary battery; and an error calculation unit configured to compute errors of the inter-terminal voltage and the open cell voltage of the secondary battery, the inter-terminal voltage and the open cell voltage being converted by the current dependency processing unit.Type: GrantFiled: December 9, 2013Date of Patent: June 28, 2016Assignee: YOKOGAWA ELECTRIC CORPORATIONInventors: Satoshi Hamano, Ryuuta Tanaka, Masaru Nakagomi, Satoshi Yoshitake
-
Patent number: 9043176Abstract: A battery degradation determination device includes a fitting module configured to fit AC impedance measurement data into an equivalent circuit model including at least one circuit block in which a resistance and a constant phase element are connected in parallel, and to obtain circuit constants in the equivalent circuit model, a P-value saving module configured to save P values being index of the constant phase element obtained by fitting AC impedance measurement data of a reference battery to the equivalent circuit model, and a degradation determination module configured to perform degradation determination for a battery as a determination target based on circuit constants obtained by fitting AC impedance measurement data of the battery as a determination target to the equivalent circuit model with the use of the P values as fixed values, with reference to correlations between degrees of battery degradation and the circuit constants in the equivalent circuit model.Type: GrantFiled: July 24, 2012Date of Patent: May 26, 2015Assignee: YOKOGAWA ELECTRIC CORPORATIONInventor: Ryuuta Tanaka
-
Publication number: 20140167773Abstract: A secondary-battery maximum-capacity measuring apparatus, includes: a current dependency processing unit configured to convert an inter-terminal voltage and an open cell voltage of a secondary battery into values without depending on a load current based on an amount of change in relative value of a voltage during a time period when a constant current is drawn from the secondary battery; and an error calculation unit configured to compute errors of the inter-terminal voltage and the open cell voltage of the secondary battery, the inter-terminal voltage and the open cell voltage being converted by the current dependency processing unit.Type: ApplicationFiled: December 9, 2013Publication date: June 19, 2014Applicant: YOKOGAWA ELECTRIC CORPORATIONInventors: Satoshi HAMANO, Ryuuta TANAKA, Masaru NAKAGOMI, Satoshi YOSHITAKE
-
Patent number: 8408844Abstract: A steel material for an underground continuous wall equipped with a hat type steel sheet pile having a hat-shaped cross-section, and an H-beam having an H-shaped cross-section, wherein: the hat type steel sheet pile includes a web, a pair of flanges, and a pair of arm sections; the H-beam includes a pair of flange sections and a web section; an outer surface of the H-beam is secured to an outer surface of the web; the length of the H-beam is shorter than that of the hat type steel sheet pile, and an overall length of the H-beam is arranged within the length of the hat type steel sheet pile; and a rear end of the H-beam is located closer to a forward end side than a rear end of the hat type steel sheet pile.Type: GrantFiled: September 5, 2007Date of Patent: April 2, 2013Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Ryuuta Tanaka, Tatsuaki Kurosawa, Shinji Taenaka, Masataka Tatsuta
-
Publication number: 20130030736Abstract: A battery degradation determination device includes a fitting module configured to fit AC impedance measurement data into an equivalent circuit model including at least one circuit block in which a resistance and a constant phase element are connected in parallel, and to obtain circuit constants in the equivalent circuit model, a P-value saving module configured to save P values being index of the constant phase element obtained by fitting AC impedance measurement data of a reference battery to the equivalent circuit model, and a degradation determination module configured to perform degradation determination for a battery as a determination target based on circuit constants obtained by fitting AC impedance measurement data of the battery as a determination target to the equivalent circuit model with the use of the P values as fixed values, with reference to correlations between degrees of battery degradation and the circuit constants in the equivalent circuit model.Type: ApplicationFiled: July 24, 2012Publication date: January 31, 2013Applicant: YOKOGAWA ELECTRIC CORPORATIONInventor: Ryuuta TANAKA
-
Publication number: 20100166508Abstract: A steel material for an underground continuous wall equipped with a hat type steel sheet pile having a hat-shaped cross-section, and an H-beam having an H-shaped cross-section, wherein: the hat type steel sheet pile includes a web, a pair of flanges, and a pair of arm sections; the H-beam includes a pair of flange sections and a web section; an outer surface of the H-beam is secured to an outer surface of the web; the length of the H-beam is shorter than that of the hat type steel sheet pile, and an overall length of the H-beam is arranged within the length of the hat type steel sheet pile; and a rear end of the H-beam is located closer to a forward end side than a rear end of the hat type steel sheet pile.Type: ApplicationFiled: September 5, 2007Publication date: July 1, 2010Inventors: Ryuuta Tanaka, Tatsuaki Kurosawa, Shinji Taenaka, Masataka Tatsuta