Patents by Inventor Takaaki Tanaka
Takaaki 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).
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Patent number: 11554760Abstract: An automatic brake subsystem (24) includes second accumulators (25F, 25R), a front second line (28) and a rear second line (29), second brake valves (30F, 30R), a first solenoid switching valve (32), first shuttle valves (33F, 33R), and a controller 37. A second solenoid switching valve (34F) and a pressure sensor (35F) are provided in the front second line (28), and a second solenoid switching valve (34R) and a pressure sensor (35R) are provided in the rear second line (29). In a case where it is determined that each of the second brake valve (30F, 30R) is not performing normally based upon a pressure of a hydraulic fluid detected by each of the pressure sensors (35F, 35R) and an operating signal supplied to the first solenoid switching valve (32) or each of the second brake valves (30F, 30R), a controller 37 performs control to switch each of the second solenoid switching valves (34F, 34R).Type: GrantFiled: July 27, 2018Date of Patent: January 17, 2023Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventors: Takaaki Tanaka, Takanobu Ikari, Yasutaka Tsuruga, Takayuki Sato, Takashi Sasaki
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Patent number: 11537035Abstract: A light source apparatus includes a plurality of light emitting apparatuses. Each of the light emitting apparatuses includes a plurality of light emitting devices each of which has a light emitting area and a non-light emitting area on an emission surface thereof that emits light. At least two light emitting apparatuses of the light emitting apparatuses constitute a light emitting apparatus group disposed such that the emission surfaces of the respective light emitting apparatuses are parallel to each other with a predetermined distance, and that a distance between light emitting areas of the respective light emitting apparatuses when viewed along a direction perpendicular to the emission surfaces of the at least two of the light emitting apparatuses is shorter than a distance between the light emitting areas of the respective light emitting apparatuses when the emission surfaces of the respective light emitting apparatuses are on the same plane.Type: GrantFiled: March 9, 2021Date of Patent: December 27, 2022Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Takaaki Tanaka, Manabu Okuno
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Publication number: 20220402759Abstract: One aspect of the present disclosure provides a hexagonal boron nitride powder having a purity of 98 mass % or more and a specific surface area of less than 2.0 m2/g.Type: ApplicationFiled: November 12, 2020Publication date: December 22, 2022Applicant: DENKA COMPANY LIMITEDInventors: Go TAKEDA, Masao TSUICHIHARA, Takaaki TANAKA
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Publication number: 20220388845Abstract: One aspect of the present invention provides a boron nitride powder that contains aggregated particles formed through aggregation of primary particles of boron nitride. The cumulative pore volume of the boron nitride powder within a fine pore radius of 0.02-1.2 ?m as measured by a mercury porosimeter is 0.65 mL/g or less.Type: ApplicationFiled: October 21, 2020Publication date: December 8, 2022Applicant: Denka Company LimitedInventors: Go TAKEDA, Haruka TAKEOKA, Takaaki TANAKA
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Publication number: 20220393520Abstract: Provided are a motor core having excellent fatigue resistance and a method of manufacturing the motor core at a low cost. The motor core that is an electrical-steel-sheet-stacked body has an outer peripheral surface in which an appearance ratio of recrystallized grains with a grain size of 15 ?m or less is 70% or more of a sheet thickness of the motor core.Type: ApplicationFiled: November 18, 2020Publication date: December 8, 2022Applicant: JFE STEEL CORPORATIONInventors: Takaaki TANAKA, Tomoyuki OKUBO, Yoshihiko ODA
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Publication number: 20220375667Abstract: Provides is a non-oriented electrical steel sheet suitable for use in a rotor of an IPM motor that has excellent magnetic flux density B50 and high-frequency iron loss properties, high tensile strength and fatigue strength, and little variation in tensile strength. The non-oriented electrical steel sheet has a predetermined steel sheet chemical composition and a microstructure in which a ratio of non-recrystallized microstructure is 5% or more and 70% or less and the number of inclusion having a diameter of 5 ?m or more is not more than 5 counts/mm2.Type: ApplicationFiled: May 13, 2020Publication date: November 24, 2022Applicant: JFE STEEL CORPORATIONInventors: Yoshihiko ODA, Yoshiaki ZAIZEN, Tomoyuki OKUBO, Takaaki TANAKA, Yukino MIYAMOTO
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Publication number: 20220359108Abstract: Provided is a non-oriented electrical steel sheet having an average crystal grain size of crystal grains being not more than 80 ?m, an area ratio of crystal grains having a grain size of not less than 1.5 times the average crystal grain size being not less than 10%; and an area ratio of crystal grains having aspect ratios of not more than 0.3 being not more than 20%, by subjecting a steel raw material containing, in mass %, C: not more than 0.005%, Si: 2.0 to 5.0%, Mn: 0.05 to 5.0%, Al: not more than 3.0%, and Zn: 0.0003 to 0.0050% to hot rolling, cold rolling, and cold-rolled sheet annealing and by heating the cold-rolled sheet to an annealing temperature between 700 to 850° C. at the average heating rate between 500 and 700° C. in a heating process of the cold-rolled sheet annealing to be not less than 10° C./s.Type: ApplicationFiled: July 7, 2020Publication date: November 10, 2022Applicant: JFE Steel CorporationInventors: Takaaki Tanaka, Tomoyuki Okubo, Yoshiaki Zaizen, Yoshihiko Oda, Yukino Miyamoto
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Publication number: 20220322541Abstract: An electronic control device includes: an electronic circuit board on which an electronic component is packaged; and a housing in which the electronic circuit board is contained, and which is composed of a case and a base. The electronic control device includes: a plurality of claws which is provided in the case of the housing and fixes the electronic circuit board; a fixing groove which is formed in the case on the rear side of the claws, and into which a peripheral edge portion of the base is close-fitted; a cutout which is formed on the rear side of the claws of the housing and is communicated with the fixing groove; and adhesive which is filled on the rear side of the claws via the fixing groove and the cutout.Type: ApplicationFiled: July 1, 2021Publication date: October 6, 2022Applicant: Mitsubishi Electric CorporationInventors: Takaaki TANAKA, Fumino Suzuki
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Patent number: 11459647Abstract: Provided are a high-strength cold rolled steel sheet that has a tensile strength of 980 MPa or more, excellent ductility, and a low failure rate in a hole expanding test, and a method for manufacturing the same. A high-strength cold rolled steel sheet comprises a predetermined composition, wherein a total area ratio of ferrite and bainitic ferrite is 20% to 80%, an area ratio of retained austenite (RA) is more than 10% and 40% or less, an area ratio of tempered martensite is more than 0% and 50% or less, a ratio of RA with an aspect ratio of 0.5 or less is 75% or more, a ratio of RA with an aspect ratio of 0.5 or less in ferrite grain boundaries is 50% or more, and an average KAM value of bcc phase is 1° or less.Type: GrantFiled: December 13, 2018Date of Patent: October 4, 2022Assignee: JFE STEEL CORPORATIONInventors: Takaaki Tanaka, Yuki Toji
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Publication number: 20220281311Abstract: Provided is a technique for improving the cooling efficiency of a vehicle heat exchange system configured to cool a cooling liquid discharged from each of a plurality of heat sources.Type: ApplicationFiled: February 19, 2020Publication date: September 8, 2022Inventors: Kazunori ISHIHARA, Jun IKEDA, Takaaki TANAKA, Yoshifumi NABESHIMA, Hideaki IIJIMA, Tsukasa AKIYAMA
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Publication number: 20220279664Abstract: An electronic device housing (1) includes: a case (20) having a bottom-surface portion (20a) and side-surface portions (10a) provided around the bottom-surface portion (20a); and a cover (10) covering an opening enclosed by ends of the side-surface portions (10a). At positions along each of at least two opposing side lines of the cover (10), two flexible arm portions (11) are provided so as to extend toward the bottom-surface portion (20a), and two protrusions (21) are provided between the two arm portions (11) so as to protrude from the side-surface portion (10a) and are held between the two arm portions so as to contact therewith. Contact parts of either the arm portions (11) or the protrusions (21) have curved-surface portions, and contact parts of others have flat-surface portions.Type: ApplicationFiled: December 12, 2019Publication date: September 1, 2022Applicant: Mitsubishi Electric CorporationInventors: Hisakazu YAMANE, Takaaki TANAKA, Kazuhisa TAMURA
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Publication number: 20220278566Abstract: In the production of a non-oriented electrical steel sheet by subjecting a steel slab having a certain component composition to a hot rolling, a hot-band annealing, a cold rolling and a finish annealing, the conditions of the finish annealing are controlled such that a yield stress of the steel sheet after the finish annealing is not less than 480 MPa. Also, when a motor core is produced by using the above steel sheet, there can be provided a non-oriented electrical steel sheet capable of producing a rotor core and a stator core as the same raw material where the stator core is subjected to a stress relief annealing at a soaking temperature of 780 to 950° C. in an atmosphere having a nitrogen content of not more than 30 vol % and a dew point of not higher than ?20° C., while a motor core is produced with such a steel sheet.Type: ApplicationFiled: June 15, 2020Publication date: September 1, 2022Applicant: JFE Steel CorporationInventors: Yoshiaki Zaizen, Yoshihiko Oda, Tomoyuki Okubo, Takaaki Tanaka, Yukino Miyamoto
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Publication number: 20220261552Abstract: A language identification unit (101) identifies types of languages of each of multiple input sentences, which are described in natural language, described in different languages, a multilingual language analysis unit (102) analyzes the syntax structure of each of the input languages in accordance with the types of the languages, a multilingual semantic analysis unit (103) analyzes the semantic structure of each of the input sentences in accordance with the types of the languages, and a multilingual semantic representation comparison unit (104) compares the input sentences to each other based on the analysis results of the semantic structure, calculates a degree of similarity between the input sentences, and appropriately compares the input sentences of different languages to each other based on the degree of similarity calculated by capturing semantic contents of the representation of the input sentences which are text data.Type: ApplicationFiled: July 8, 2020Publication date: August 18, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takaaki TANAKA, Masaaki NAGATA, Yuki ARASE
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Publication number: 20220235758Abstract: An engine (12) drives a variable capacity-type hydraulic pump (16), discharged hydraulic oil is selectively supplied to a cooling fan (19) and a hoist cylinder (11) in accordance with switching of a selection valve (17), thereby controlling the same on the basis of each target value. A pump discharge pressure (Pp) of the hydraulic oil discharged from the hydraulic pump (16) and a motor supply pressure (Pm) of the hydraulic oil supplied to a hydraulic motor (18) via the selection valve (17) are detected by sensors (27, 28) and are compared with pressure determination values stored in advance as a pump discharge pressure (Pp) and an actuator supply pressure (Pm) generated when the target value is achieved. Presence/absence of abnormality in the hydraulic actuator control device (15) is determined on the basis of a result of the comparison, and when abnormality is determined to have occurred, control is performed to minimize the capacity of the hydraulic pump (16).Type: ApplicationFiled: November 8, 2019Publication date: July 28, 2022Inventors: Takaaki TANAKA, Kazunori ISHIHARA, Jun IKEDA, Juri SHIMIZU
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Patent number: 11396839Abstract: A hydraulic drive fan control device is provided with a variable displacement hydraulic pump, a hydraulic motor, a hydraulic drive fan that is driven by the hydraulic motor, a flow amount control valve, a rotational speed detector that detects a rotational speed of an engine, and a controller. The controller outputs a first valve control signal to the flow amount control valve and outputs a first pump control signal to the hydraulic pump to rotate the hydraulic drive fan at a first rotational speed, and outputs a second valve control signal to the flow amount control valve and outputs a second pump control signal to the hydraulic pump, thereby stopping the rotation of the hydraulic drive fan.Type: GrantFiled: September 21, 2018Date of Patent: July 26, 2022Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Takaaki Tanaka, Masatsugu Arai, Takayuki Sato, Naoki Fukuda, Jun Ikeda, Ryuji Kouno
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Publication number: 20220212665Abstract: The driver assistance device includes a processor configured to determine an end point of a section in which automated driving can be continued if automated driving of a vehicle is performed, set a target speed of the vehicle at the end point based on road information of a vicinity of the end point, and control operation of the vehicle so that a speed of the vehicle becomes the target speed at the end point. If an arrival point requiring braking of the vehicle is present beyond the end point, the processor is configured to calculate the target speed based on a distance from the end point to the arrival point.Type: ApplicationFiled: December 30, 2021Publication date: July 7, 2022Inventor: Takaaki TANAKA
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Publication number: 20220204830Abstract: Provided is a boron nitride powder including: an agglomerated particle obtained by aggregating flaky primary particles, in which in-plane directions of the primary particles are oriented in a direction parallel to a short-side direction of the agglomerated particle. In addition, provided is a method for producing a boron nitride powder including: a nitriding step of firing a boron carbide powder having an aspect ratio of 1.5 to 10 in a nitrogen pressurized atmosphere to obtain a fired product; and a crystallization step of heating a formulation that contains the fired product and a boron source to produce flaky boron nitride primary particles and obtaining a boron nitride powder containing an agglomerated particle obtained by aggregating the primary particles.Type: ApplicationFiled: March 25, 2020Publication date: June 30, 2022Applicant: Denka Company LimitedInventors: Go TAKEDA, Takaaki TANAKA
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Patent number: 11365459Abstract: A high strength cold rolled steel sheet has a composition which contains, in terms of mass %, more than 0.15% and not more than 0.45% of C, 0.50-2.50% of Si, 1.50-3.00% of Mn, not more than 0.050% of P, not more than 0.0100% of S, 0.010-0.100% of Al and not more than 0.0100% of N, with the remainder including Fe and unavoidable impurities, has a total content of ferrite and bainitic ferrite of 20-80%, has a retained austenite content of more than 10% and not more than 40%, has a martensite content of more than 0% and not more than 50%, and is such that the proportion of retained austenite that has an aspect ratio of not more than 0.5 is not less than 75%, and the proportion of retained austenite having an aspect ratio of not more than 0.5 that is present at Bain group boundaries is not less than 50%.Type: GrantFiled: April 2, 2018Date of Patent: June 21, 2022Assignee: JFE Steel CorporationInventors: Takaaki Tanaka, Yuki Toji
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Patent number: 11359256Abstract: Provided are a high-strength cold-rolled steel sheet that has a tensile strength of 1320 MPa or more, excellent ductility and stretch flangeability, and a low failure rate in a hole expanding test, and a method for manufacturing the same. A high-strength cold-rolled steel sheet comprises a specific composition, wherein a total area ratio of ferrite and bainitic ferrite is 10% to 50%, an area ratio of retained austenite (RA) is more than 15% and 50% or less, an area ratio of tempered martensite is more than 15% and 60% or less, a ratio of RA with an aspect ratio of 0.6 or less is 70% or more, a ratio of RA with an aspect ratio of 0.6 or less in ferrite grain boundaries is 50% or more, and an average KAM value of bcc phase is 1° or less.Type: GrantFiled: December 13, 2018Date of Patent: June 14, 2022Assignee: JFE STEEL CORPORATIONInventors: Takaaki Tanaka, Yuki Toji
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Patent number: 11338812Abstract: The vehicle control device recognizes an object around an own-vehicle and acquires information related to a road shape ahead of the own-vehicle. The vehicle control device detects, when a road shape prompting cut-in to an own-lane is acquired, a monitoring target vehicle likely to be prompted to cut into the own-lane among the recognized objects. The vehicle control device executes an evasive preparation for cut-in of the monitoring target vehicle when the monitoring target vehicle is detected. The vehicle control device executes an evasive action to avoid interference between the monitoring target vehicle and the own-vehicle when a predetermined motion from which cut-in of the monitoring target vehicle to the own-lane is expected is sensed after the evasive preparation is executed.Type: GrantFiled: February 28, 2019Date of Patent: May 24, 2022Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Yoichiro Katsura, Yoshinori Watanabe, Takaaki Tanaka, Tadashi Omachi