Patents by Inventor Akira Yamazaki

Akira Yamazaki 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: 10703105
    Abstract: A liquid ejection head is provided with an ejection orifice array having multiple ejection orifices in order to eject a liquid; multiple energy-generating elements for generating energy in order to eject the liquid; a substrate provided with the energy-generating elements; a through-port array having multiple through-ports penetrating the substrate; multiple linear liquid flow paths positioned between the through-port array and the ejection orifice array and connected to respective ejection orifices of the ejection orifice array and respective through-ports of the through-port array; and first and second electrodes arranged in each of the multiple liquid flow paths for generating an electroosmotic flow in the liquid.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: July 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiyuki Nakagawa, Kazuhiro Yamada, Noriyasu Nagai, Takuro Yamazaki, Toru Nakakubo, Akira Yamamoto, Masafumi Morisue, Ryo Kasai
  • Publication number: 20200161741
    Abstract: An antenna unit for glass according to the present invention is installed on the indoor side of a glass sheet, and transmits and receives electromagnetic waves at the indoor side through the glass sheet.
    Type: Application
    Filed: January 28, 2020
    Publication date: May 21, 2020
    Applicants: AGC Inc., NTT DOCOMO, INC.
    Inventors: Tetsuya HIRAMATSU, Ryuta SONODA, Osamu KAGAYA, Kentaro OKA, Akira SAITO, Kensuke MIYACHI, Akinobu UEDA, Yoshiyuki KAWANO, Jun ANDOU, Taku YAMAZAKI
  • Publication number: 20200149766
    Abstract: A device that can accurately detect clogging of a filter and that has a simple structure is provided. A device for measuring clogging of a filter in an air conditioner (2) having a blower (30) that blows gas (40), (42) through a duct (10) and a filter (20) that is provided in the duct (10) and filters dust floating in the gas, comprises a device (26) for measuring a sound pressure that is provided in the duct (10), a data processor (70) that extracts data on the sound pressure at a specific frequency from the data on the sound pressure that have been measured by means of the device (26) for measuring a sound pressure, and an estimating device (70) that estimates clogging of the filter based on the data on the sound pressure at the specific frequency that have been extracted by means of the data processor (70).
    Type: Application
    Filed: July 5, 2018
    Publication date: May 14, 2020
    Inventors: Toshiro Kisakibaru, Isao Honbori, Akira Yamazaki
  • Publication number: 20200144930
    Abstract: A power conversion apparatus connectable in parallel to a second power conversion apparatus includes circuitry that generates a carrier wave, generates a pulse signal synchronized with the carrier wave, generates power that is based on a width of the pulse signal, obtains a monitor value corresponding to a circulating current circulating between the power conversion apparatus and the second power conversion apparatus, and based on the monitor value obtained while the power conversion circuitry is generating driving power, changes a period of the carrier wave to decrease the circulating current.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 7, 2020
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kentaro Inomata, Akira Yamazaki, Masato Higuchi, Hidenori Hara
  • Patent number: 10641200
    Abstract: A cooling structure of a water-cooled engine includes: a plurality of cylinders 2 arranged in a cylinder block 1; and a water jacket W formed around the plurality of cylinders 2. The water jacket W includes a pair of main flow paths 7, 8 formed in a state of extending in a cylinder arrangement direction outside the cylinders, and inter-bore flow paths 9, 10 formed between adjacent cylinders 2 in a state of connecting the pair of main flow paths 7, 8. Guide walls 11h, 13h, capable of guiding the cooling water flowing in the main flow paths 7, 8 to the inter-bore flow paths 9, 10, are formed in the cylinder block 1.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: May 5, 2020
    Assignee: KUBOTA Corporation
    Inventors: Hiroki Oso, Takahiro Yamazaki, Hideyuki Koyama, Rina Kaneko, Yoshinori Tanaka, Takashi Yamaguchi, Akira Tanaka
  • Patent number: 10632769
    Abstract: A printer includes a recording medium holding unit that holds a long, wound strip-like recording medium to enable the recording medium to be pulled out from a front end thereof, a recording unit that pulls out the recording medium held by the recording medium holding unit to a side higher in a vertical direction than a position for pulling out from the recording medium holding unit and that executes a recording operation for the pulled-out recording medium, and a second cutter mechanism disposed under the recording medium holding unit and that cuts the recording medium for which the recording operation is executed by the recording unit at the back end thereof separated from the front end by a predetermined length. A drawing position of the recording medium into an inversion path is arranged to be lower than the recording medium holding unit and the recording unit in the vertical direction.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: April 28, 2020
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN SYSTEMS JAPAN CO., LTD.
    Inventors: Akira Takahashi, Takeshi Yamazaki, Yuichi Taguchi
  • Publication number: 20200127035
    Abstract: A semiconductor device has a first transistor of a first conductivity type and a second transistor of a second conductivity type, the first transistor is arranged in an active region of a semiconductor substrate, and a gate electrode and the active region overlap with each other in a plan view and also have a portion located between the source and the drain of the first transistor of the semiconductor substrate. In the channel width direction, an impurity concentration of the second conductivity type is higher at the end than on the center side of the portion.
    Type: Application
    Filed: October 14, 2019
    Publication date: April 23, 2020
    Inventors: Akira Oseto, Tatsunori Kato, Ryunosuke Ishii, Takanori Watanabe, Atsushi Suzuki, Koichiro Iwata, Kazuo Yamazaki, Hideaki Takada, Akira Ohtani
  • Publication number: 20200122824
    Abstract: A transmission device includes a casing accommodating a transmission gear and having an oil sump for retaining oil. The oil in the oil sump flows from a lubrication pump through a lubrication passage and is injected to the transmission gear. A connection portion is provided in a part of the lubrication passage, which part is disposed outside the casing. A direction control valve is provided downstream of the lubrication pump and upstream of the connection portion in the lubrication passage with respect to a flow direction of the oil. The direction control valve is configured to open the lubrication passage when a hydraulic pressure in the lubrication passage exceeds a predetermined value and to close the lubrication passage when the hydraulic pressure is equal to or lower than the predetermined value.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 23, 2020
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hirofumi AKAHORI, Yuji YAMAZAKI, Takahiko BANNO, Akira HAYASAKA, Kenta OGASAWARA
  • Patent number: 10630129
    Abstract: Provided are a coil having excellent insulation properties, a rotating electrical machine equipped with the same, and a method for manufacturing the same. The coil (60) has a covered portion where a conductive body (602) is covered with an insulating film (612) and a stripped portion where the insulating film is stripped off, and the stripped portion is electrophoretically coated with a resin material (601). The coil (60) may have a configuration wherein segment conductors (28) each having a covered portion and stripped portion are included, connection parts are formed by the stripped portions of two different segment conductors (28) being connected at coil ends (62), and the thickness of the resin material (601) is no more than the thickness of the insulating film (612) at the boundary portion (630) between the covered portion and the stripped portion.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: April 21, 2020
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Kenichi Nakayama, Tomohiro Fukuda, Akira Toba, Shinji Yamazaki, Takashi Genmoto, Naoki Nishikawa, Hisaya Shimizu
  • Publication number: 20200111645
    Abstract: A plasma processing method includes executing an etching process that includes supplying an etching gas into a process container in which a target substrate is supported on a second electrode serving as a lower electrode, and applying an RF power for plasma generation and an RF power for ion attraction to turn the etching gas into plasma and to subject the target substrate to etching. The etching process includes applying a negative DC voltage to a first electrode serving as an upper electrode during the etching to increase an absolute value of self-bias on the first electrode. The etching process includes releasing DC electron current generated by the negative DC voltage to ground through plasma and a conductive member disposed as a ring around the first electrode, by using a first state where the conductive member is connected to a ground potential portion.
    Type: Application
    Filed: December 10, 2019
    Publication date: April 9, 2020
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Akira KOSHIISHI, Masaru SUGIMOTO, Kunihiko HINATA, Noriyuki KOBAYASHI, Chishio KOSHIMIZU, Ryuji OHTANI, Kazuo KIBI, Masashi SAITO, Naoki MATSUMOTO, Yoshinobu OHYA, Manabu IWATA, Daisuke YANO, Yohei YAMAZAWA, Hidetoshi HANAOKA, Toshihiro HAYAMI, Hiroki YAMAZAKI, Manabu SATO
  • Publication number: 20200106906
    Abstract: A multi feed detection device includes a position detector that detects a position of paper being transported, a multi feed detector that is disposed on a downstream side of the position detector in a paper transport direction and detects multi feed of the paper being transported, and a control section that performs control such that multi feed detection by the multi feed detector is stopped when a leading end of paper being transported next to paper, on which multi feed detection is executed by the multi feed detector, is detected by the position detector.
    Type: Application
    Filed: April 9, 2019
    Publication date: April 2, 2020
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Tsuyoshi MABARA, Akira YAMAZAKI
  • Patent number: 10546727
    Abstract: A plasma etching apparatus includes an upper electrode and a lower electrode, between which plasma of a process gas is generated to perform plasma etching on a wafer W. The apparatus further comprises a cooling ring disposed around the wafer, a correction ring disposed around the cooling ring, and a variable DC power supply directly connected to the correction ring, the DC voltage being preset to provide the correction ring with a negative bias, relative to ground potential, for attracting ions in the plasma and to increase temperature of the correction ring to compensate for a decrease in temperature of a space near the edge of the target substrate due to the cooling ring.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: January 28, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Akira Koshiishi, Masaru Sugimoto, Kunihiko Hinata, Noriyuki Kobayashi, Chishio Koshimizu, Ryuji Ohtani, Kazuo Kibi, Masashi Saito, Naoki Matsumoto, Yoshinobu Ohya, Manabu Iwata, Daisuke Yano, Yohei Yamazawa, Hidetoshi Hanaoka, Toshihiro Hayami, Hiroki Yamazaki, Manabu Sato
  • Patent number: 10529539
    Abstract: An apparatus includes an upper electrode and a lower electrode for supporting a wafer disposed opposite each other within a process chamber. A first RF power supply configured to apply a first RF power having a relatively higher frequency, and a second RF power supply configured to apply a second RF power having a relatively lower frequency is connected to the lower electrode. A variable DC power supply is connected to the upper electrode. A process gas is supplied into the process chamber to generate plasma of the process gas so as to perform plasma etching.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: January 7, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Akira Koshiishi, Masaru Sugimoto, Kunihiko Hinata, Noriyuki Kobayashi, Chishio Koshimizu, Ryuji Ohtani, Kazuo Kibi, Masashi Saito, Naoki Matsumoto, Manabu Iwata, Daisuke Yano, Yohei Yamazawa, Hidetoshi Hanaoka, Toshihiro Hayami, Hiroki Yamazaki, Manabu Sato
  • Publication number: 20190359833
    Abstract: A conductive composition including a conductive polymer (A), a water-soluble polymer (B) other than the conductive polymer (A), and a solvent (C), wherein a peak area ratio is 0.44 or less, which is determined based on results of analysis performed using a high performance liquid chromatograph mass spectrometer with respect to a test solution obtained by extracting the water-soluble polymer (B) from the conductive composition with n-butanol, and calculated by formula (I): Area ratio=Y/(X+Y) wherein X is a total peak area of an extracted ion chromatogram prepared with respect to ions derived from compounds having a molecular weight (M) of 600 or more from a total ion current chromatogram, Y is a total peak area of an extracted ion chromatogram prepared with respect to ions derived from compounds having a molecular weight (M) of less than 600 from the total ion current chromatogram.
    Type: Application
    Filed: August 8, 2019
    Publication date: November 28, 2019
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Akira YAMAZAKI, Shinji SAIKI, Yoshiko IRIE, Masashi UZAWA
  • Patent number: 10488757
    Abstract: This conductive composition includes: a conductive polymer (a) having a sulfonic acid group and/or a carboxy group; a basic compound (b) having at least one nitrogen-containing heterocyclic ring and an amino group; an aqueous polymer (c) having a hydroxyl group (excluding the conductive polymer (a)); a hydrophilic organic solvent (d); and water (e).
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: November 26, 2019
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Akira Yamazaki, Masashi Uzawa, Hiroya Fukuda
  • Patent number: 10469256
    Abstract: Provided is a cryptographic communication system including a first semiconductor device and a second semiconductor device. The first semiconductor device includes a common key generation unit that generates a common key CK(a) by using a unique code UC(a) and correction data CD(a), and an encryption unit that encrypts the common key CK(a) generated in the common key generation unit by using a public key PK(b) of the second semiconductor device. The second semiconductor device includes a secret key generation unit that generates a secret key SK(b) by using a unique code UC(b) and correction data CD(b), and a decryption unit that decrypts the common key CK(a) encrypted in the encryption unit by using the secret key SK(b).
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: November 5, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Shigemasa Shiota, Shigeru Furuta, Masayuki Hirokawa, Akira Yamazaki, Daisuke Oshida
  • Patent number: 10461538
    Abstract: A system stabilization control device controls a control instrument within a power system on the basis of measurement information from a plurality of measurement points within the power system. The system stabilization control device includes an equipment information database storing information of system equipment interconnected with the power system; a control priority determining unit determining the control priority of the control instrument on the basis of the information of the system equipment; a control target determining unit determining a control target on the basis of the measurement information from the plurality of measurement points and the control priority; a destabilization time calculating unit calculating destabilization time of the power system from the measurement information from the plurality of measurement points; and a control time determining unit determining control time of the control instrument on the basis of the destabilization time and the information of the system equipment.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: October 29, 2019
    Assignee: HITACHI, LTD.
    Inventors: Jun Yamazaki, Osamu Tomobe, Eisuke Kuroda, Akira Tsubota, Sumito Tobe, Masahiro Yatsu
  • Patent number: 10436183
    Abstract: A plasma accelerating apparatus includes: a cathode (11) configured to supply electrons to a plasma acceleration region; an anode (12); a power supply (13) configured to apply a voltage between the cathode and the anode; a supply port (14) arranged on an outer circumference side of the cathode to supply a propellant to the plasma acceleration region; and a first magnetic field generator (15) configured to generate a first axial direction magnetic field in the upstream side region of the plasma acceleration region to suppress electrons supplied from the cathode from heading for the anode. Thus, the plasma accelerating apparatus and the plasma accelerating method having high thrust efficiency is provided.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: October 8, 2019
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY
    Inventors: Takuya Yamazaki, Matsutaka Sasahara, Tomoji Iwasaki, Masaaki Yasui, Akihiro Sasoh, Akira Iwakawa, Daisuke Ichihara, Keisuke Mizutani
  • Publication number: 20190305623
    Abstract: Provided are a coil having excellent insulation properties, a rotating electrical machine equipped with the same, and a method for manufacturing the same. The coil (60) has a covered portion where a conductive body (602) is covered with an insulating film (612) and a stripped portion where the insulating film is stripped off, and the stripped portion is electrophoretically coated with a resin material (601). The coil (60) may have a configuration wherein segment conductors (28) each having a covered portion and stripped portion are included, connection parts are formed by the stripped portions of two different segment conductors (28) being connected at coil ends (62), and the thickness of the resin material (601) is no more than the thickness of the insulating film (612) at the boundary portion (630) between the covered portion and the stripped portion.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 3, 2019
    Inventors: Kenichi NAKAYAMA, Tomohiro FUKUDA, Akira TOBA, Shinji YAMAZAKI, Takashi GENMOTO, Naoki NISHIKAWA, Hisaya SHIMIZU
  • Patent number: 10415496
    Abstract: An engine-driven working machine includes a controller, which varies a control value of a solenoid valve so as to decrease or increase an opening degree of the solenoid valve when a rotating speed of an engine is within a predetermined high rotating speed range and the rotating speed of the engine is lower or higher than a predetermined rotating speed, respectively. When the control value of the solenoid valve is varied so as to decrease the opening degree of the solenoid valve and corresponds to a predetermined opening degree larger than a fully-closed state, the control value is set to a limitation value.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: September 17, 2019
    Assignees: YAMABIKO CORPORATION, IIDA DENKI KOGYO CO., LTD.
    Inventors: Shiro Yamaguchi, Takamasa Otsuji, Kosuke Matsumoto, Hiroyuki Miyaki, Akira Yamazaki