Patents by Inventor Kazuaki Koyama
Kazuaki Koyama 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: 20240102688Abstract: An indoor unit included in an air conditioner that includes an outdoor unit includes a power receiving circuit (PR2), a low-frequency transmission and reception circuit as a first reception circuit, a high-frequency transmission and reception circuit as a transmission and reception circuit, and an inner-controller. The low-frequency transmission and reception circuit receives a current signal transmitted from an outdoor unit by using a current loop formed by a power line included in power supply wiring. For a first communication state in which physical connection between with the outdoor unit is recognized and a second communication state in which communication for operation of the air conditioner is performed between with the outdoor unit, the inner-controller selects use of the low-frequency transmission and reception circuit and the high-frequency transmission and reception circuit in the first communication state and the second communication state.Type: ApplicationFiled: November 30, 2023Publication date: March 28, 2024Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Ryosuke YAMAMOTO, Yohei KOYAMA, Youta KATOU, Kazuaki ANDO, Taiki KOGAWA, Shin HIGASHIYAMA, Kosuke HOTTA, Shinichi ISHIZEKI, Toshiaki KUMATA
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Publication number: 20240094720Abstract: In a facility state monitoring system, a sensor node includes a sensor that outputs, as sensor data, data indicating the state of a facility as a monitoring target, a communication unit, and a power supply unit that supplies power to the sensor and the communication unit. The sensor node is commonly used by multiple monitoring targets. A receiver receives the sensor data transmitted from the communication unit. A state detection unit receives the sensor data received by the receiver, and learns, as learning data, normal states of the monitoring targets based on normal sensor data corresponding to normal operations of the monitoring targets. In response to the receiver receiving the sensor data transmitted from the sensor node after learning, the state detection unit compares states of the monitoring targets indicated by the sensor data with the learning data to detect an abnormality occurrence or symptom in the monitoring targets.Type: ApplicationFiled: November 29, 2023Publication date: March 21, 2024Inventors: Yuji KOYAMA, Kazuaki MAWATARI
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Publication number: 20230202455Abstract: A hybrid system which can calculate various type of more proper required torques is provided while input factors which can be used for calculating the various types of required torques are limited. A hybrid system 2 includes a rotation sensor 31 which detects a rotation number of an engine 3, at least either one of an accelerator opening-degree sensor 61 which detects an accelerator opening degree and a rotation-number instruction unit 62 which transmits a rotation-number signal instructing a certain rotation number to the engine 3, and a control unit 5 which controls an operation of the engine 3.Type: ApplicationFiled: October 22, 2021Publication date: June 29, 2023Inventors: Kazuaki KOYAMA, Ryota KIMURA, Koichi FUNAKI, Yasuo FUJII, Tamotsu KUNO
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Publication number: 20230191891Abstract: Based on further ingenuity, it is possible to support a heavy and large electric motor on an engine body with sufficient strength while driving the electric motor with a belt without slipping, thereby providing a more streamlined industrial hybrid engine. The industrial hybrid engine is provided with an endless rotation band wound around a drive pulley of a crankshaft and a motor pulley of an electric motor for motive power. The electric motor is attached to an engine case in a position-fixed state using one support bracket. The support bracket includes first and second support portions for attaching the electric motor, and attachment portions positioned between the first and second support portions for attaching the electric motor to the engine case.Type: ApplicationFiled: October 25, 2021Publication date: June 22, 2023Inventors: Masayasu TAKAMI, Kentaro KITA, Kazuaki KOYAMA
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Patent number: 10648398Abstract: In an intake structure of an internal combustion engine, on an intake upstream side from a valve seat of an intake port, a convex portion is provided which protrudes to an inside of the intake port in a place near an outer circumferential portion of a cylinder chamber when viewed from an upper side of the cylinder chamber. The convex portion includes an upstream guide surface extending from an apex of the convex portion to the intake upstream side, and a downstream guide surface extending from the apex to an intake downstream side and including a curved surface recessed inside the convex portion at a middle portion thereof.Type: GrantFiled: December 18, 2018Date of Patent: May 12, 2020Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Akira Yoshihara, Koichi Matsumoto, Shigeki Nabetani, Kazuaki Koyama, Yuya Okamoto
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Publication number: 20190186343Abstract: In an intake structure of an internal combustion engine, on an intake upstream side from a valve seat of an intake port, a convex portion is provided which protrudes to an inside of the intake port in a place near an outer circumferential portion of a cylinder chamber when viewed from an upper side of the cylinder chamber. The convex portion includes an upstream guide surface extending from an apex of the convex portion to the intake upstream side, and a downstream guide surface extending from the apex to an intake downstream side and including a curved surface recessed inside the convex portion at a middle portion thereof.Type: ApplicationFiled: December 18, 2018Publication date: June 20, 2019Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHAInventors: Akira YOSHIHARA, Koichi MATSUMOTO, Shigeki NABETANI, Kazuaki KOYAMA, Yuya OKAMOTO
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Patent number: 10227947Abstract: A cylinder head containing an exhaust system manifold for an engine includes screw holes formed through a fastening face of the cylinder head and an exhaust pipe, and outlet cooling channels that are provided adjacent to an outlet of a confluence of the manifold, and are disposed between the screw holes and the outlet. Coolant flows through the outlet cooling channels.Type: GrantFiled: March 21, 2017Date of Patent: March 12, 2019Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Jidosha Engineering Kabushiki KaishaInventors: Kazuaki Koyama, Yuya Okamoto, Akira Yoshihara, Norio Takayasu, Genki Takahashi
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Publication number: 20170298861Abstract: A cylinder head containing an exhaust system manifold for an engine includes screw holes formed through a fastening face of the cylinder head and an exhaust pipe, and outlet cooling channels that are provided adjacent to an outlet of a confluence of the manifold, and are disposed between the screw holes and the outlet. Coolant flows through the outlet cooling channels.Type: ApplicationFiled: March 21, 2017Publication date: October 19, 2017Applicants: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, MITSUBISHI JIDOSHA ENGINEERING KABUSHIKI KAISHAInventors: Kazuaki KOYAMA, Yuya OKAMOTO, Akira YOSHIHARA, Norio TAKAYASU, Genki TAKAHASHI
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Publication number: 20170153221Abstract: A sample testing system includes a sample analyzer that analyzes a particle in a sample, and an information processing apparatus that receives a result of an analysis on the sample from the sample analyzer. The information processing apparatus includes a controller, a display unit, and an input unit. The controller controls the display unit to display a screen including a reference-information display region for the result of the analysis on the sample and an input-value display region for a visual test to be performed on the sample with a microscope when retesting is determined as necessary, basing the result of the analysis on the sample. With the screen displayed, the controller receives a count value of the particle counted in the visual test on the sample, through the input unit, and controls the display unit to display the received count value in the input-value display region.Type: ApplicationFiled: November 25, 2016Publication date: June 1, 2017Applicant: SYSMEX CORPORATIONInventors: Youichi IMAI, Motoi KINISHI, Yuji TAKANO, Kazuaki KOYAMA
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Patent number: 8511272Abstract: A horizontal groove extending horizontally when an alternator bracket is fixed to a cylinder block of a vehicle engine is formed in the alternator bracket. A shank of a bolt inserted through mounting pieces of an alternator is inserted into the horizontal groove from a horizontally lateral direction toward the cylinder block to support the bolt on a lower surface of the horizontal groove. After insertion, the bolt is restrained from moving toward an opening of the horizontal groove. Since the insertion of the bolt into the horizontal groove is facilitated, and the weight of the alternator is borne by the lower surface of the horizontal groove, a burden on a fixing portion is reduced, and it becomes easy to position the alternator and hold it when it is fixed. Thus, the accessory can be mounted on the cylinder block with satisfactory work efficiency and with support accuracy kept high.Type: GrantFiled: November 10, 2008Date of Patent: August 20, 2013Assignee: Mitsubishi Jidosha Kogyo Kabushiki KaishaInventors: Kazuaki Koyama, Sumito Hori, Satoshi Matsui
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Publication number: 20090159038Abstract: A horizontal groove extending horizontally when an alternator bracket is fixed to a cylinder block of a vehicle engine is formed in the alternator bracket. A shank of a bolt inserted through mounting pieces of an alternator is inserted into the horizontal groove from a horizontally lateral direction toward the cylinder block to support the bolt on a lower surface of the horizontal groove. After insertion, the bolt is restrained from moving toward an opening of the horizontal groove. Since the insertion of the bolt into the horizontal groove is facilitated, and the weight of the alternator is borne by the lower surface of the horizontal groove, a burden on a fixing portion is reduced, and it becomes easy to position the alternator and hold it when it is fixed. Thus, the accessory can be mounted on the cylinder block with satisfactory work efficiency and with support accuracy kept high.Type: ApplicationFiled: November 10, 2008Publication date: June 25, 2009Inventors: Kazuaki KOYAMA, Sumito HORI, Satoshi MATSUI
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Patent number: 4891878Abstract: A magnetic head comprises a main core (41) made of sendust material and a pair of reinforcing cores (45) for holding the main core so that the main core is sandwiched between the pair of reinforcing cores, in which the main core is adhered to the pair of reinforcing cores by glass material through transition metal layers (48) formed on both sides of the main core. The main core is comprised of a pair of core halves (41a, 41b) having their respective transition metal layers formed on their contacting surfaces, the pair of core halves with transition metal layers (25) being adhered to each other by glass material (29).Type: GrantFiled: January 31, 1989Date of Patent: January 9, 1990Assignee: Sanyo Electric Co., Ltd.Inventors: Yoshihiko Kawai, Kazuaki Koyama, Yasuda, Isao
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Patent number: 4811147Abstract: A magnetic head comprises a main core (1) made of sendust material or amorphous alloy and a pair of reinforcing cores (5,5) for holding the main core so that the main core is sandwiched between the pair of reinforcing cores. The main core (1) is comprised of a pair of core halves (1a, 1b), the pair of core halves being adhered to each other by glass material containing phosphorus pentaoxide (P.sub.2 O.sub.5) and barium oxide (BaO) as main constituent elements. P.sub.2 O.sub.5 is about 40% of the whole glass material and BaO is about 50% wt. of the whole glass material.Type: GrantFiled: October 8, 1987Date of Patent: March 7, 1989Assignee: Sanyo Electric Co. Ltd.Inventors: Yoshihiko Kawai, Kazuaki Koyama, Isao Yasuda
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Patent number: 4807075Abstract: A magnetic head comprises a main core (41) made of sendust material and a pair of reinforcing cores (45) for holding the main core so that the main core is sandwiched between the pair of reinforcing cores, in which the main core is adhered to the pair of reinforcing cores by glass material through transition metal layers (48) formed on both sides of the main core. The main core is comprised of a pair of core halves (41a, 41b) having their respective transition metal layers formed on their contacting surfaces, the pair of core halves with transition metal layers (25) being adhered to each other by glass material (29).Type: GrantFiled: September 14, 1987Date of Patent: February 21, 1989Assignee: Sanyo Electric Co., Ltd.Inventors: Yoshihiko Kawai, Kazuaki Koyama, Isao Yasuda
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Patent number: 4475137Abstract: A magnetic transducer includes sendust center core having an opening and a head gap extending from the opening to one side of the center core, and a pair of reinforcing cores. Each of the reinforcing cores includes a ferrite plate and a glass member mounted on one side of the ferrite plate. The center core is sandwiched between the two reinforcing cores such that the glass members are located on opposite sides, respectively, of the center core where the head gap is formed, and that one side of the center core is in flush with, or projects from, respective side faces of the glass member. The glass member is formed by a material having an abrasiveness resistivity which is smaller than that of said center core.Type: GrantFiled: March 5, 1982Date of Patent: October 2, 1984Assignee: Sanyo Electric Co., Ltd.Inventors: Isao Yasuda, Yorinobu Yoshisato, Yoshihiko Kawai, Kazuaki Koyama
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Patent number: 4404608Abstract: In a magnetic head including an inner core of metallic magnetizable material sandwiched between a pair of outer reinforcing cores each having a coil winding insertion opening formed in it, the inner core includes a first core block which has a front gap defining surface and a back or rear gap defining surface respectively provided at one side and the other side of the first core block and a coil winding recess provided in a position adjacent to the front gap defining surface, and which is formed, between the front gap defining surface and the coil winding recess, with a space or groove for setting the lower end of the front gap defining surface and a brazing material layer for connecting the space or groove with the coil winding recess, and a second core block to be combined with the first core block so as to constitute the inner core.Type: GrantFiled: February 4, 1981Date of Patent: September 13, 1983Assignee: Sanyo Electric Co., Ltd.Inventors: Isao Yasuda, Kazuaki Koyama, Yoshihiko Kawai