Patents by Inventor Yuji Sasaki
Yuji Sasaki 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: 9835514Abstract: An internal combustion engine knock determining device includes a vibration detector that produces a signal corresponding to engine vibration, an intensity computing unit that retrieves vibrational components in a plurality of frequency regions in which vibration intensity peaks are located when knock occurs, a background-noise computing unit that calculates background noise caused by factors other than knock, a frequency computing unit that determines specific frequency regions from which to determine whether knock is occurring by excluding certain frequency regions designated as frequency regions requiring exclusion due to the intensity of false-detection causing noise as a proportion of the background noise in the certain regions, and a knock determining unit that determines the occurrence of knock based on the vibration intensity in the specific frequency regions obtained by excluding the frequency regions requiring exclusion, wherein the number of specific frequency regions is increased to improve the acType: GrantFiled: December 20, 2010Date of Patent: December 5, 2017Assignee: NISSAN MOTOR CO., LTD.Inventor: Yuji Sasaki
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Publication number: 20170305404Abstract: Provided is a charging control device that allows the actual state of charge of a secondary battery to converge quickly to an upper limit value given as a control center value when the actual state of charge is higher than the upper limit value so that charging may be performed in an efficient manner and fuel economy may be improved. The charging control device (10) includes a charge/discharge integration unit (23) for computing an integrated charge/discharge value (IW) of the secondary battery, a charge control unit (26) for controlling the charging of the secondary battery such that the recognized state of charge is maintained at a prescribed upper limit value (80%) lower than a fully charged state (100%) by switching a generation voltage of a generator.Type: ApplicationFiled: November 4, 2015Publication date: October 26, 2017Inventors: Ryuko Komatsu, Yuji Sasaki
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Publication number: 20170274554Abstract: A honeycomb structure has a pillar-shaped honeycomb structure body having porous partition walls which defines cells which forms a passage of liquid extended from an inflow end face toward an outflow end face, a circumferential wall arranged to surround a circumference of the partition walls. The honeycomb structure body has an outermost circumference cell structure including a complete cell arranged at the outermost circumference of the honeycomb structure body, a center cell structure formed by the cells arranged at a center part at an inner side to the outermost circumference cell structure, and a boundary wall arranged at a boundary part between the outermost circumference cell structure and the center cell structure. The outermost circumference cell structure and the center cell structure are formed as different structures to each other, and a thickness of the boundary wall is set to be thicker than a thickness of the circumferential wall.Type: ApplicationFiled: March 8, 2017Publication date: September 28, 2017Applicant: NGK INSULATORS, LTD.Inventors: Akifumi KAWAKAMI, Yuji SASAKI, Mitsuhiro ITO, Yukiharu MORITA
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Publication number: 20170266675Abstract: A branch location is arranged close to a nozzle, and the channel lengths are the same. A processing nozzle that includes a beam path for passing light from a light source and ejects a fluid containing a processing material from an ejection port includes a supply pipe that is arranged outside the beam path through which the light passes, and supplies the fluid, and a first branch pipe and a second branch pipe that supply the fluid from the supply pipe to the ejection port, and have the same total length. The first branch pipe includes a first bent portion having a first shape on an upstream side of the fluid, and a second bent portion having a second shape on a downstream side of the fluid, and the second branch pipe includes a third bent portion having the first shape on the upstream side of the fluid, and a fourth bent portion having the second shape on the downstream side of the fluid.Type: ApplicationFiled: November 11, 2015Publication date: September 21, 2017Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURINGInventors: Hiroshi OHNO, Satoshi TSUNO, Yuji SASAKI
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Publication number: 20170259378Abstract: Ejection and stop of a powder flow are switched while maintaining a once generated steady flow without stopping it. A processing nozzle includes a supply source of a fluid containing a powder, a first channel through which the fluid supplied from the supply source passes, a second channel that supplies the fluid to an ejection port of the nozzle, a third channel that releases the fluid outside the nozzle, and a switch that causes the first channel and the second channel to communicate with each other when supplying the fluid to the ejection port, and causes the first channel and the third channel to communicate with each other when not supplying the fluid to the ejection port.Type: ApplicationFiled: November 11, 2015Publication date: September 14, 2017Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURINGInventors: Hiroshi OHNO, Mitsuo SASAKI, Yuji SASAKI, Satoshi TSUNO, Go OBARA, Tomohiko YAMADA, Yasutomo SHIOMI, Takashi OBARA
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Publication number: 20170259377Abstract: A powder convergence improves without varying the flow velocity and powder density of a powder flow. A processing nozzle includes an inner cone including a beam path that passes light from a light source, an outer cone arranged outside the inner cone, a fluid ejection channel formed by a gap between the inner cone and the outer cone, and including an ejection port that opens toward a process surface, and a fluid guide channel having a flow inlet for a fluid. The fluid guide channel guides the fluid toward the fluid ejection channel in a direction away from the beam path.Type: ApplicationFiled: November 11, 2015Publication date: September 14, 2017Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURINGInventors: Hiroshi OHNO, Satoshi TSUNO, Yuji SASAKI, Go OBARA, Naotada OKADA
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Patent number: 9670893Abstract: The present invention is provided with: an injection timing detection unit; an engine rotation speed detection unit; an engine load detection unit; and a storing unit for storing control data of the variation in optimal ignition timing with respect to engine speed and engine load, and control data of correction coefficient pertaining to optimal ignition timing with respect to the engine load at a specific fuel injection timing. Referring to the control data, the variation in the optimal ignition timing is determined based on the detected fuel injection timing and the detected engine rotation speed; and, referring to the control data, the variation in the optimal ignition timing is determined based on the specific fuel injection timing and the detected engine speed, and the deviation between the respective variation in the optimal injection timing is determined.Type: GrantFiled: February 13, 2012Date of Patent: June 6, 2017Assignee: NISSAN MOTOR CO., LTD.Inventor: Yuji Sasaki
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Publication number: 20170045462Abstract: An optical processing head that detects a trouble of an optical processing head that will be generated at the time of optical processing before the trouble occurs is disclosed. The optical processing head that performs processing by condensing, on a process surface, a ray emitted by a light source for processing includes a cylindrical housing that surrounds a ray for processing emitted by the light source for processing, a ray emitter for inspection that is incorporated in the cylindrical housing and arranged outside the path of the ray for processing, and a light receiver that is incorporated in the cylindrical housing, arranged outside the path of the ray for processing, and receives a ray for inspection emitted by the ray emitter for inspection. The contamination of the inner surface of the cylindrical housing or the concentration of a scattering object flowing into the cylindrical housing is inspected by using a signal acquired from the light receiver.Type: ApplicationFiled: March 10, 2015Publication date: February 16, 2017Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURINGInventors: Hiroshi OHNO, Yuji SASAKI, Mitsuo SASAKI, Takashi OBARA, Kazuyuki MASUKAWA
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Publication number: 20160375521Abstract: A machining apparatus that need not exchange a processing nozzle when changing a shaping condition, and increases the use efficiency of a material is disclosed. The processing nozzle that performs processing by ejecting a processing material toward a molten pool formed on a process surface by an energy line includes a cylindrical inner housing that incorporates a path through which the energy line passes, and ejects the energy line from one end, a cylindrical outer housing that incorporates the inner housing, and has an inner surface tapered in the ejection direction of the energy line ejected from the inner housing, and a slide mechanism that changes, along the energy line, the relative position of the outer housing with respect to the inner housing.Type: ApplicationFiled: March 4, 2015Publication date: December 29, 2016Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURINGInventors: Yuji SASAKI, Hiroshi OHNO, Mitsuo SASAKI, Takashi OBARA, Kazuyuki MASUKAWA
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Publication number: 20160368087Abstract: An optical processing head capable of reducing the energy loss at the time of optical processing is disclosed. The optical processing head includes a first optical element that converts light emitted by a light source into first parallel light, a second optical element that is arranged downstream of the first optical element and converts the first parallel light into first divergent light, a third optical element that is arranged downstream of the second optical element and converts the first divergent light into second parallel light, and a fourth optical element that is arranged downstream of the third optical element and converts the second parallel light into convergent light which is condensed on the processing surface side.Type: ApplicationFiled: February 20, 2015Publication date: December 22, 2016Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURINGInventors: Hiroshi OHNO, Tetsuo SAKAI, Mitsuo SASAKI, Kazuyuki Masukawa, Takashi OBARA, Yuji SASAKI, Satoshi TSUNO
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Publication number: 20160368097Abstract: An optical processing head capable of downsizing an apparatus while increasing the shaping accuracy of optical processing is disclosed. The optical processing head performs processing while moving, in a predetermined moving direction on a processing surface, an optical spot formed by condensing light emitted by a light source. The optical processing head includes an optical element that condenses light emitted by the light source to generate the optical spot of a shape elongated in the moving direction of the optical spot. Part of the optical spot is set as a processing region, the front side and/or rear side of the processing region in the moving direction is set as a pre-heating region and/or post-heating region, and a processing target object before and/or after processing in the region is heated.Type: ApplicationFiled: February 25, 2015Publication date: December 22, 2016Applicant: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURINGInventors: Hiroshi OHNO, Yuji SASAKI, Mitsuo SASAKI, Takashi OBARA, Kazuyuki MASUKAWA
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Publication number: 20160331088Abstract: There is provided a fastener tape. The fastener tape includes a mounting part for mounting a fastener element and a sewing part for sewing a fabric. The mutually adjoining sides of the mounting part and sewing part are integrally connected to each other. Another side of the mounting part which is spaced distantly from the sewing part provides a fastener element mounting side for mounting the fastener element. The sewing part is constituted of a plain weave texture.Type: ApplicationFiled: May 9, 2016Publication date: November 17, 2016Inventors: Go Takani, Yuji Sasaki
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Publication number: 20160288674Abstract: An armrest structure for door trim has an armrest lower, an armrest upper, and a ioining component that loins the armrest upper and the armrest lower together, wherein the ioining component is provided with a strap portion, and an anchor portion, and wherein the attachment hole has a wider portion through which the anchor portion can be inserted, and a narrower portion through which the anchor portion cannot be inserted, and during a process to assemble the armrest upper and the armrest lower together, the anchor portion is inserted through the wider portion, and once the armrest upper and the armrest lower are in an assembled state, the anchor portion is located at a position underneath the narrower portion of the attachment hole that is formed in the armrest lower.Type: ApplicationFiled: November 25, 2014Publication date: October 6, 2016Inventors: Kanako MIZUNO, Yuji SASAKI, Fumitaka HIROSE, Kazumi KOJIMA, Hironori AKABANE, Yasuo SAIDA, Yuji ITO, Iwao UDATSU
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Patent number: 9317084Abstract: In a thermal displacement compensating device and a thermal displacement compensating method for a machine tool, a block temperature obtaining section obtains temperatures of respective blocks based on temperature information detected by temperature sensors wherein temperatures in each of the respective blocks into which a column is divided to be pluralized are defined as a uniform value. An FEM analysis section performs a structural analysis by a finite element method based on the temperatures of the respective blocks obtained by the block temperature obtaining section and infers thermal displacement amounts of the column. A compensation value calculation section calculates a compensation value for a machining command position based on the thermal displacement amounts of the column inferred by the FEM analysis section. A compensation section compensates the machining command position by the compensation value obtained by the compensation value calculation section.Type: GrantFiled: May 16, 2012Date of Patent: April 19, 2016Assignee: JTEKT CorporationInventors: Yuji Sasaki, Hideki Iwai, Yasumasa Sakurai, Kimihiro Onishi, Yoshio Wakazono, Yoshiji Yamamoto
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Patent number: 9309858Abstract: In an internal combustion engine control device, a predetermined margin torque is set such that it is possible to maintain a predetermined engine idling speed by adjusting ignition timing with respect to load fluctuations during idling operation. The margin torque is set to decrease, as a load, acting on the internal combustion engine during idling operation, increases. Accordingly, the margin torque can be set to an appropriate value, and thus it is possible to improve a fuel economy performance during idling operation of the internal combustion engine.Type: GrantFiled: January 23, 2013Date of Patent: April 12, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Kentaro Yamano, Yuji Sasaki, Takao Kawasaki
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Patent number: 9248720Abstract: A utility part assembly includes a vehicular interior part and a utility part. The vehicular interior part has a first surface and a second surface that is opposite to the first surface and has a first mounting hole and a second mounting hole. The utility part includes a first member provided on the first surface and a second member provided on the second surface. The first member has a first coupling pin and one of a second coupling pin and a first coupling hole, and the second member has a coupling portion that is coupled to the first coupling pin and another one of the second coupling pin and the first coupling hole. The first coupling pin is inserted through the first mounting hole and coupled to the coupling portion, and the second coupling pin is inserted through the second mounting hole and coupled to the first coupling hole.Type: GrantFiled: May 9, 2012Date of Patent: February 2, 2016Assignees: TOYOTA BOSHOKU KABUSHIKI KAISHA, NIFCO INC.Inventors: Hirokazu Hirano, Yuji Sasaki
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Publication number: 20150346765Abstract: A portable information apparatus of an embodiment includes a display unit having a display portion and a panel, a housing having a front frame and a rear frame, and a mounting substrate arranged therein. The display portion has a display surface and a back surface. The panel is arranged on the display surface of the display portion and has a back surface, a display surface and a side surface. The back surface of the panel is formed at a display surface side of the display portion. The front frame is formed to surround the side surface of the panel. The rear frame is arranged at a back surface side of the display portion, contacts the front frame, and opposes to the display unit. The rear frame has a first rear frame and a second rear frame, and the first rear frame has rigidity larger than the second rear frame.Type: ApplicationFiled: August 13, 2015Publication date: December 3, 2015Applicant: Kabushiki Kaisha ToshibaInventors: Takuya MATSUDA, Jun Morimoto, Yuji Sasaki
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Patent number: 9200610Abstract: There is provided a valve timing varying mechanism (VTC) to vary a valve timing. An estimated VTC conversion angle VTCNFS is calculated in accordance with a sensed VTC conversion angle VTCNOW (S15˜S19). At the time of conversion of the VTC conversion angle to the advance side or retard side, a fastest response value is calculated by conversion of the VTC conversion angle from the previous sensed value with a fastest response speed, and the sensed value (estimated value) is limited to or below the fastest response value when the current value of the sensed valve timing exceeds the fastest response value (S20, S21).Type: GrantFiled: July 17, 2013Date of Patent: December 1, 2015Assignee: NISSAN MOTOR CO., LTD.Inventor: Yuji Sasaki
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Publication number: 20150211471Abstract: There is provided a valve timing varying mechanism (VTC) to vary a valve timing. An estimated VTC conversion angle VTCNFS is calculated in accordance with a sensed VTC conversion angle VTCNOW (S15˜S19). At the time of conversion of the VTC conversion angle to the advance side or retard side, a fastest response value is calculated by conversion of the VTC conversion angle from the previous sensed value with a fastest response speed, and the sensed value (estimated value) is limited to or below the fastest response value when the current value of the sensed valve timing exceeds the fastest response value (S20, S21).Type: ApplicationFiled: July 17, 2013Publication date: July 30, 2015Applicant: NISSAN MOTOR CO., LTD.Inventor: Yuji Sasaki
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Publication number: 20150012126Abstract: A thermal displacement correction method for a machine tool includes: estimating a thermal displacement of a support and a thermal displacement of the movable body independently of each other; acquiring a displacement of an attachment position of a scale that detects a position of the movable body; a movable body actual position acquiring step of acquiring an actual position of the movable body relative to the support after thermal deformation of the movable body; computing a degree of inclination of the movable body at the actual position; acquiring a resultant displacement that is a resultant of the thermal displacement of the support and the thermal displacement of the movable body; computing a correction value based on the resultant displacement; correcting a command position of the movable body based on the correction value.Type: ApplicationFiled: June 23, 2014Publication date: January 8, 2015Applicant: JTEKT CORPORATIONInventors: Yuji SASAKI, Hideki IWAI, Yasumasa SAKURAI