Patents by Inventor Takahiro Yamada
Takahiro Yamada 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: 20210159099Abstract: A ring support is attached to an inner wall surface of a chamber that houses a semiconductor wafer to support a susceptor. When the semiconductor wafer is placed on the susceptor, an inner space of the chamber is separated into an upper space and a lower space. Particles are likely to accumulate on a lower chamber window as a floor part of the chamber. However, since the upper space and the lower space are separated, the semiconductor wafer can be prevented from being contaminated by the particles flowing into the upper space and adhering to a surface of the semiconductor wafer even when the particles on the lower chamber window are blown up by irradiation with flash light.Type: ApplicationFiled: February 4, 2021Publication date: May 27, 2021Inventors: Takahiro YAMADA, Makoto ABE, Kazuhiko FUSE, Jun WATANABE, Shinji MIYAWAKI
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Patent number: 10985021Abstract: A gallium nitride (GaN) substrate is injected with magnesium as a p-type dopant. The GaN substrate undergoes preheating through irradiation with light from halogen lamps in an atmosphere containing nitrogen and hydrogen, and further undergoes heating to a high temperature for a super-short time through irradiation with flashes of light from flash lamps. Heating the GaN substrate in the atmosphere containing nitrogen and hydrogen complements removed nitrogen, thus preventing nitrogen shortage. Such a heating process also enables heat treatment while supplying hydrogen to the GaN substrate. The heating process further enables crystal defects in the GaN substrate to be recovered. With these effects, the p-type dopant injected into the GaN substrate is activated with high efficiency.Type: GrantFiled: July 23, 2019Date of Patent: April 20, 2021Assignee: SCREEN HOLDINGS CO., LTD.Inventors: Hideaki Tanimura, Takahiro Yamada, Shinichi Kato, Takayuki Aoyama
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Publication number: 20210094484Abstract: A vehicle information conveying device includes at least one ornamental surface member and at least one ornamental surface deformation unit. The ornamental surface member is elastic and deformable. The ornamental surface member includes an ornamental surface designed to be viewed by a user of a vehicle. The ornamental surface deformation unit is configured to drive the ornamental surface member and deform the ornamental surface when information that is to be conveyed to the user is present.Type: ApplicationFiled: September 25, 2020Publication date: April 1, 2021Inventors: Kunihiro NOKURA, Tetsuya ARAKAWA, Eiji HANAI, Ayaka YAGI, Takahiro YAMADA
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Publication number: 20210078081Abstract: There is provided a silver powder which has a small average particle diameter and a small thermal shrinkage percentage, and a method for producing the same. While a molten metal of silver heated to a temperature (1292 to 1692° C.), which is higher than the melting point (962° C.) of silver by 330 to 730° C., is allowed to drop, a high-pressure water is sprayed onto the molten metal of silver (preferably at a water pressure of 90 to 160 MPa) to rapidly cool and solidify the molten metal of silver to powderize silver to produce a silver powder which has an average particle diameter of 1 to 6 ?m and a shrinkage percentage of not greater than 8% (preferably not greater than 7%) at 500° C., the product of the average particle diameter by the shrinkage percentage at 500° C. being 1 to 11 ?m·% (preferably 1.5 to 10.5 ?m·%).Type: ApplicationFiled: November 2, 2020Publication date: March 18, 2021Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Atsushi Ebara, Kenichi Inoue, Yoshiyuki Michiaki, Takahiro Yamada, Masahiro Yoshida
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Patent number: 10950472Abstract: A ring support is attached to an inner wall surface of a chamber that houses a semiconductor wafer to support a susceptor. When the semiconductor wafer is placed on the susceptor, an inner space of the chamber is separated into an upper space and a lower space. Particles are likely to accumulate on a lower chamber window as a floor part of the chamber. However, since the upper space and the lower space are separated, the semiconductor wafer can be prevented from being contaminated by the particles flowing into the upper space and adhering to a surface of the semiconductor wafer even when the particles on the lower chamber window are blown up by irradiation with flash light.Type: GrantFiled: July 13, 2017Date of Patent: March 16, 2021Assignee: SCREEN Holdings Co., Ltd.Inventors: Takahiro Yamada, Makoto Abe, Kazuhiko Fuse, Jun Watanabe, Shinji Miyawaki
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Publication number: 20210062914Abstract: A continuously variable transmission (2) has a torque convertor (3) having a lock-up clutch (30) and a continuously variable transmission mechanism (5). A control unit (10) has a shift control unit (10C) configured to be able to perform a pseudo stepwise up-shift control that varies a transmission ratio of the continuously variable transmission mechanism (5) stepwise, a lock-up control unit (10A) configured to control an engagement state of the lock-up clutch (30), and a torque control command unit (10D) configured to perform a torque-down control of a driving source (1). When the engagement control of the lock-up clutch (30) and the pseudo stepwise up-shift control are performed at the same time, the torque control command unit (10D) configured to perform the torque-down control with a greater torque reduction mount.Type: ApplicationFiled: December 13, 2018Publication date: March 4, 2021Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.Inventors: Yasuhiro ENDO, Akihiro TANABE, Takahiro YAMADA, Shohei IMAJI, Masayuki MANNEN
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Patent number: 10915228Abstract: A character input device includes a character input unit that receives an input character, a suggestion list management unit that converts the input character, a suggestion list generator that generates a conversion suggestion list through conversion of the input character, a suggestion display including a standard-suggestion display area for displaying the conversion suggestion list, an operation detector that detects movement of a divisional suggestion included in the conversion suggestion list, and a suggestion division management unit that generates a divisional-suggestion display area different from the standard-suggestion display area in the suggestion display in response to the movement of the divisional suggestion. The suggestion division management unit associates the divisional suggestion with the divisional-suggestion display area, and outputs the divisional suggestion to the divisional-suggestion display area.Type: GrantFiled: February 18, 2020Date of Patent: February 9, 2021Assignee: OMRON CorporationInventors: Takahiro Yamada, Yasumasa Sasano
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Publication number: 20210001942Abstract: A first inclined surface and a second inclined surface are inclined with respect to an optical axis of a light emitting diode. The first inclined surface guides light from the light emitting diode guided in the first light transmitting portion toward an outside of an outer lens. An inclination angle of the second inclined surface with respect to the optical axis is larger than an inclination angle of the first inclined surface with respect to the optical axis. The second inclined surface reflects the light from the light emitting diode guided in the first light transmitting portion toward the second light transmitting portion and guides the light into the second light transmitting portion.Type: ApplicationFiled: July 2, 2020Publication date: January 7, 2021Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Takahiro YAMADA, Shizuka MIURA
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Publication number: 20200386433Abstract: An HVAC system is provided.Type: ApplicationFiled: August 23, 2020Publication date: December 10, 2020Inventors: Masahiro Honda, Junichi Shimoda, Takashi Shimamura, Yuuji Yamada, Hideyuki Nakagawa, Hiroyuki Imada, David Palazzolo, Joseph Kelly Hearnsberger, Sriram Venkat, Chris Bellshaw, John Clements, Masahiro Oka, Akinori Nakai, Cheng Li, Takahiro Yamada
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Publication number: 20200381273Abstract: After a semiconductor wafer held by a susceptor in a chamber is preheated by irradiating the semiconductor wafer with light from halogen lamps, the semiconductor wafer is irradiated with a flash of light from flash lamps. A temperature of the semiconductor wafer is measured with an end edge part radiation thermometer and a temperature of the susceptor is measured with a central part radiation thermometer. It is determined that the semiconductor wafer bows when a specific singular point appears in a temporal differentiation in the temperature measured with the end edge part radiation thermometer or a temporal differentiation in the temperature measured with the central part radiation thermometer. A flash light irradiation of the semiconductor wafer which is determined to be in the bowing state is omitted and the semiconductor wafer is transported out of the chamber, and the subsequent semiconductor wafer is transported into the chamber.Type: ApplicationFiled: April 9, 2020Publication date: December 3, 2020Inventors: Shogo SHIGEMASU, Takahiro YAMADA
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Patent number: 10840096Abstract: A substrate on which a processing film made of a directed self-assembly material is formed is placed on a holding plate incorporating a preheating mechanism, and is preheated. A low oxygen atmosphere surrounds the substrate. A preheating temperature is a temperature at which the directed self-assembly material comprised of two types of polymers is phase-separated. By preheating the processing film, the two types of polymers are phase-separated to form a fine pattern. The processing film is irradiated with flashes of light from flash lamps while being preheated. This increases the fluidity of the polymers constituting the processing film to achieve the formation of a fine pattern while suppressing the occurrence of defects.Type: GrantFiled: July 14, 2017Date of Patent: November 17, 2020Assignee: SCREEN HOLDINGS CO., LTD.Inventors: Takahiro Yamada, Masahiko Harumoto, Yuji Tanaka
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Patent number: 10835764Abstract: A function/process of recording marker position data and spot data is provided. The marker position data includes position information of a marker 29 measured for tumor tracking irradiation and information on time of execution of X-ray imaging. The spot data includes information on time of irradiation of each spot, a delivered irradiation position, and a delivered irradiation amount. The marker position data and the spot data are synchronized based on the time information, and by using the marker position data and the spot data upon spot irradiation, a delivered dose distribution of proton irradiation is calculated. With this configuration, it is possible to take the influence of interplay effect into consideration, and it is possible to support to make more appropriate determination upon replanning of a treatment plan.Type: GrantFiled: March 23, 2017Date of Patent: November 17, 2020Assignees: HITACHI, LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Yusuke Fujii, Taeko Matsuura, Yuka Matsuzaki, Kikuo Umegaki, Hiroki Shirato, Hidenori Koyano, Takahiro Yamada, Rintarou Fujimoto
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Patent number: 10828702Abstract: There is provided a silver powder which has a small average particle diameter and a small thermal shrinkage percentage, and a method for producing the same. While a molten metal of silver heated to a temperature (1292 to 1692° C.), which is higher than the melting point (962° C.) of silver by 330 to 730° C., is allowed to drop, a high-pressure water is sprayed onto the molten metal of silver (preferably at a water pressure of 90 to 160 MPa) to rapidly cool and solidify the molten metal of silver to powderize silver to produce a silver powder which has an average particle diameter of 1 to 6 ?m and a shrinkage percentage of not greater than 8% (preferably not greater than 7%) at 500° C., the product of the average particle diameter by the shrinkage percentage at 500° C. being 1 to 11 ?m·% (preferably 1.5 to 10.5 ?m·%).Type: GrantFiled: October 26, 2016Date of Patent: November 10, 2020Assignee: DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Atsushi Ebara, Kenichi Inoue, Yoshiyuki Michiaki, Takahiro Yamada, Masahiro Yoshida
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Publication number: 20200293158Abstract: A character input device includes a character input unit that receives an input character, a suggestion list management unit that converts the input character, a suggestion list generator that generates a conversion suggestion list through conversion of the input character, a suggestion display including a standard-suggestion display area for displaying the conversion suggestion list, an operation detector that detects movement of a divisional suggestion included in the conversion suggestion list, and a suggestion division management unit that generates a divisional-suggestion display area different from the standard-suggestion display area in the suggestion display in response to the movement of the divisional suggestion. The suggestion division management unit associates the divisional suggestion with the divisional-suggestion display area, and outputs the divisional suggestion to the divisional-suggestion display area.Type: ApplicationFiled: February 18, 2020Publication date: September 17, 2020Applicant: OMRON CorporationInventors: Takahiro YAMADA, Yasumasa SASANO
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Patent number: 10773311Abstract: An object of the present invention is to provide a phosphorus-containing copper powder with good volume resistivity and a small carbon content by suppressing an oxygen content to a relatively low value even if a particle size is made small, and a method for producing the same. In the phosphorus-containing copper powder containing phosphorus, a ratio of an oxygen content (wt. %) to a BET specific surface area (m2/g) (oxygen content/BET specific surface area) is 0.90 wt. %·g/m2 or less, a divalent copper compound is present on a surface of particles constituting the phosphorus-containing copper powder, a carbon content is 0.10 wt. % or less, and D50 is 7.11 ?m or less.Type: GrantFiled: August 18, 2016Date of Patent: September 15, 2020Assignee: DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Kenichi Inoue, Atsushi Ebara, Masahiro Yoshida, Kyoso Masuda, Takahiro Yamada, Shinichi Uchiyama
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Publication number: 20200277811Abstract: A vehicle door exterior handle device is provided in which insertion of a handle lever into an opening of the vehicle door is disabled at the non-actuated position but is allowed at the actuated position when a handle base having the handle lever in a state of being operatively linked to a linking arm part of the exterior handle is attached to the vehicle door, wherein a provisional holding member is mounted on the handle lever, the provisional holding member being capable of rotating around an axis parallel to a pivot axis of the handle lever, and an engagement portion is provided on the provisional holding member, the engagement portion being engaged with a latching part provided on the handle base when the handle lever is at the actuated position. This maintains the exterior handle at a door opened position for placing the handle lever into the actuated position.Type: ApplicationFiled: April 13, 2018Publication date: September 3, 2020Inventors: Takahiro YAMADA, Tomoyuki KUKITA
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Patent number: 10751966Abstract: A single facer comprises: a swingable frame supporting a press roll in such a manner as to allow a gap between one of a pair of corrugating rolls and the press roll to be changed; an adjusting screw contactable with a contact member coupled to the swingable frame; an encoder for detecting vibration of the press roll occurring during formation of a corrugated medium by the pair of corrugating rolls; and a control section for controlling drive of a motor for displacing the adjusting screw. The control section is configured to execute a first control processing of driving the motor until a magnitude of the vibration is reduced to a given value.Type: GrantFiled: August 29, 2014Date of Patent: August 25, 2020Assignee: KABUSHIKI KAISHA ISOWAInventors: Hisashi Hayashi, Takahiro Yamada, Naoki Mori
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Patent number: 10751552Abstract: A tumor tracking control device (41) performs windowing process on a captured image A (61) and a captured image B (62), measures a position of a marker (29) using the captured image A (61) and the captured image B (62) after performing the windowing process, and generates a signal capable of controlling irradiation with radiation based on the position of the marker (29). Accordingly, it is possible to provide a tumor tracking apparatus and an irradiation system which are capable of tracking an object to be tracked without erroneous detection, even in a case where a structure similar to the object to be tracked is in the vicinity of the object to be tracked, in tumor tracking.Type: GrantFiled: March 30, 2017Date of Patent: August 25, 2020Assignees: HITACHI, LTD., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Takahiro Yamada, Toru Umekawa, Yusuke Fujii, Naoki Miyamoto, Kikuo Umegaki
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Patent number: 10746290Abstract: A lockup control device for a vehicle includes: a torque converter, and a lockup control configured to increase a lockup pressure difference command to an initial pressure difference, when a turbine rotation speed variation amount of the torque converter becomes smaller than a predetermined value during a ramp control in which the lockup pressure difference command is increased by a ramp pressure difference, the lockup control section being configured to switch to a second increase gradient having an increase gradient lower than a first increase gradient of the ramp pressure difference when the turbine rotation speed variation amount is equal to or greater than the predetermined value.Type: GrantFiled: January 31, 2017Date of Patent: August 18, 2020Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.Inventors: Takahiro Yamada, Kunihiro Takahashi, Syunsuke Iwamoto, Yuji Okamoto, Toshiaki Noda
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Publication number: 20200200114Abstract: A method of controlling an injector driving circuit that may include a first field effect transistor (FET) that opens and closes a driving power supply to an injector, a second FET having a pulse width modulation control function for supplying a starting current to the injector to open a valve and then supplying a driving current for maintaining an opening driving state to the injector, and a Zener diode. The method may include increasing a valve opening torque to open the injector via turning ON both the first and second FET to obtain a maximum current during a cold start or when an injector valve sticks, turning OFF the second FET before closing the injector, and preventing damage to the Zener diode due to a back electromotive voltage from the injector provided when the valve is closed via turning OFF the first FET after a predetermined amount of time elapses.Type: ApplicationFiled: December 24, 2019Publication date: June 25, 2020Inventors: Takahiro Yamada, Takuya Ino