Patents by Inventor Akira Yamamoto

Akira Yamamoto 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: 20200210083
    Abstract: One or more storage systems are connected to one or more storage boxes comprising multiple storage devices. Multiple storage areas provided by one or more storage boxes include an allocated area, which is a storage area that is allocated to a virtual volume, and an empty area, which is a storage area that is not allocated to any logical volume. Multiple owner rights corresponding to multiple storage areas are set in one or more storage systems. A storage system having an empty area owner right changes an empty area to the allocated area by allocating the empty area. In a case where a configuration change (a relative change in the number of storage boxes with respect to the number of storage systems) is performed, a first storage system that exists after the configuration change sets, in the first storage system, either more or fewer owner rights than the owner rights, which have been allocated to the first storage system before the configuration change.
    Type: Application
    Filed: March 10, 2020
    Publication date: July 2, 2020
    Applicant: Hitachi, Ltd.
    Inventors: Akira YAMAMOTO, Miho IMAZAKI
  • Publication number: 20200210082
    Abstract: One or more storage systems are connected to one or more storage boxes comprising multiple storage devices. Multiple storage areas provided by one or more storage boxes include an allocated area, which is a storage area that is allocated to a virtual volume, and an empty area, which is a storage area that is not allocated to any logical volume. Multiple owner rights corresponding to multiple storage areas are set in one or more storage systems. A storage system having an empty area owner right changes an empty area to the allocated area by allocating the empty area. In a case where a configuration change (a relative change in the number of storage boxes with respect to the number of storage systems) is performed, a first storage system that exists after the configuration change sets, in the first storage system, either more or fewer owner rights than the owner rights, which have been allocated to the first storage system before the configuration change.
    Type: Application
    Filed: March 10, 2020
    Publication date: July 2, 2020
    Applicant: Hitachi, Ltd.
    Inventors: Akira YAMAMOTO, Miho IMAZAKI
  • Patent number: 10698627
    Abstract: A storage system as a storage cluster recognized as one storage device with respect to a host system specifies a primary volume, to which one or more snapshot volumes are associated, as a migration source primary volume and performs migration processing of migrating at least the migration source primary volume from among the migration source primary volume and a part of the snapshot volumes from a migration source storage device (storage device including specified migration source primary volume and one or more snapshot volume) to a migration target storage device.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: June 30, 2020
    Assignee: HITACHI, LTD.
    Inventors: Akihiro Hara, Akira Yamamoto, Masakuni Agetsuma, Hideo Saito
  • Publication number: 20200200235
    Abstract: There is provided a gear device including an input shaft to which power is input, an internal gear, and an external gear. The input shaft has an input shaft hollow portion that extends in an axial direction, and an internal gear portion that meshes with an input pinion to be rotationally driven. The internal gear portion is configured so that the input pinion internally meshing with the internal gear portion and the input shaft hollow portion do not overlap each other when viewed in the axial direction.
    Type: Application
    Filed: October 29, 2019
    Publication date: June 25, 2020
    Inventors: Akira Yamamoto, Mitsuhiro Tamura
  • Patent number: 10693349
    Abstract: The life estimation system is a life estimation system that estimates a life of the reduction gear including a reduction mechanism. The life estimation system includes a sensor that is to be mounted onto the reduction gear and detects information for identifying a stress generated in a specific part of the reduction gear, and an estimating unit that identifies the stress generated in the specific part based on detection information obtained by the sensor and estimates the life of the specific part based on the identified stress.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: June 23, 2020
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Mitsuhiro Tamura, Akira Yamamoto
  • Publication number: 20200196432
    Abstract: A semiconductor apparatus includes a metal body in which a through hole is formed, a socket that covers the metal body without closing the through hole, a connection terminal connected to the metal body and exposed to an outside of the socket, a control board having a metal pattern and a circuit pattern, and a semiconductor chip having a control terminal connected to the circuit pattern via the through hole without being in contact with the metal body, the connection terminal being connected to the metal pattern.
    Type: Application
    Filed: July 21, 2017
    Publication date: June 18, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuki HATA, Akira YAMAMOTO, Shintaro ARAKI
  • Patent number: 10663827
    Abstract: An object is to provide: a transparent screen having high transparency in which a hot spot caused by transmitted light can be reduced; and an image display system in which visibility of a screen is excellent and a hot spot is reduced by using the transparent screen. The object is achieved by the transparent screen including: a dot array in which dots obtained by immobilizing a cholesteric liquid crystalline phase are two-dimensionally arranged; and a layer that is obtained by immobilizing a cholesteric liquid crystalline phase.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: May 26, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Akira Yamamoto, Michio Nagai
  • Patent number: 10656836
    Abstract: In write processing of a data set group to be written to be one or more data sets to be written, a storage system performs encoding processing including processing for generating a data model showing regularity of the data set group to be written and having one or more input values as an input and the data set group as an output. In the write processing, the storage system writes the data model generated in the encoding processing and associated with a key of the data set group to be written.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: May 19, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Hiroaki Akutsu, Akira Yamamoto
  • Patent number: 10651720
    Abstract: An object of the present invention is to synchronize PWM between individual phases of an IPM, so that the IPM has a simplified-scale circuit. An IPM according to the present invention includes a DC-DC converter including a multi-phase arm having a plurality of phase arms connected in parallel on a secondary side, a secondary-wire-voltage detection circuit configured to detect a secondary wire voltage in each phase arm of the DC-DC converter, and a synchronization-signal generation circuit configured to generate a synchronization signal in each phase arm on the basis of the behavior of the secondary wire voltage.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: May 12, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takatoshi Yasui, Takahiko Murakami, Akira Yamamoto, Yoshikazu Tsunoda
  • Patent number: 10642085
    Abstract: Provided is a laminate including first and second patterned polarizers, a patterned optical anisotropic layer disposed between the first and second patterned polarizers, and an optically anisotropic layer disposed between the first patterned polarizer and the patterned optical anisotropic layer; in which an angle formed between an absorption axis of each of polarization regions of the second patterned polarizer and a slow axis of each of phase difference regions of the patterned optical anisotropic layer that is superposed on each of the polarization regions of the second patterned polarizer is 0°±5° or 90°±5°; an absolute value of Rth of the optically anisotropic layer is 50 to 150 nm; at least one of the first or second patterned polarizers is movable; and a white display state and a black display state are switched with each other. Also provided is a window.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Akira Yamamoto
  • Patent number: 10642145
    Abstract: Provided are a transparent screen having high transparency in which a hot spot caused by transmitted light can be reduced; and an image display system in which visibility of a screen is excellent and a hot spot is reduced by using the transparent screen. The transparent screen includes, in this order: a first ?/4 plate; a reflecting layer that has a structure obtained by immobilizing a cholesteric liquid crystalline phase and reflects a part of incidence light; and a polarizing film that has an absorption axis in a thickness direction.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: May 5, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Yujiro Yanai, Michio Nagai, Akira Yamamoto
  • Publication number: 20200132887
    Abstract: Provided are an optical element and a wearable display device, the optical element being suitably applicable to a wearable display device in which a pixel grid of a display panel is inconspicuous to a user and the generation of moire is suppressed. The optical element includes: a support; and a plurality of dots that are arranged on the support and exhibit optical anisotropy, the dots are formed of a composition including a liquid crystal compound, and the optical element includes the dots having a slow axis in a direction different from a direction in which the plurality of dots are arranged.
    Type: Application
    Filed: December 27, 2019
    Publication date: April 30, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Akira YAMAMOTO, Hiroshi SATO, Yukito SAITOH
  • Patent number: 10622867
    Abstract: A drive device configured to drive a container transporting device for transporting a container is provided. The drive device includes a motor which generates power, a brake configured to brake a movement generated by the power of the motor, and a speed reducer which has an output shaft connected to a driven portion of the container transporting device, includes a lubricant enclosed therein, and is configured to decelerate the power of the motor and transmit the decelerated power to the output shaft, in which the speed reducer, the brake, and the motor are disposed in this order from above in a vertical direction, a first seal member configured to block the lubricant is provided between the speed reducer and the brake, and the brake includes an accommodation chamber which accommodates a leaked lubricant in a case where the lubricant enclosed in the speed reducer leaks past the first seal member.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: April 14, 2020
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Mitsuhiro Tamura, Akira Yamamoto, Koji Moritani
  • Patent number: 10621083
    Abstract: A storage system selects from a plurality of physical areas constituting a physical address space as copy source physical areas, one or more non-additionally recordable physical areas each including a fragmented free area, and also selects a recordable physical area as a copy destination physical area. The storage system then writes one or more pieces of live data from the selected one or more copy source physical areas to the free area of the selected copy destination physical area on a per-strip or per-stripe basis, sequentially from the beginning of the free area. If the size of the write target data is such that it is not possible to write the write target data to the free area on a per-strip or per-stripe basis, then the storage system pads the write target data, and writes the padded write target data to the free area on a per-strip or per-stripe basis.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: April 14, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Nakagoe, Akira Yamamoto, Yoshihiro Yoshii
  • Patent number: 10599351
    Abstract: One or more storage systems are connected to one or more storage boxes comprising multiple storage devices. Multiple storage areas provided by one or more storage boxes include an allocated area, which is a storage area that is allocated to a virtual volume, and an empty area, which is a storage area that is not allocated to any logical volume. Multiple owner rights corresponding to multiple storage areas are set in one or more storage systems. A storage system having an empty area owner right changes an empty area to the allocated area by allocating the empty area. In a case where a configuration change (a relative change in the number of storage boxes with respect to the number of storage systems) is performed, a first storage system that exists after the configuration change sets, in the first storage system, either more or fewer owner rights than the owner rights, which have been allocated to the first storage system before the configuration change.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: March 24, 2020
    Assignee: HITACHI, LTD.
    Inventors: Akira Yamamoto, Miho Imazaki
  • Patent number: 10592112
    Abstract: In some examples, a system may include a computing device in communication with at least one storage device. Initially, the computing device may execute a first type of storage software which stores a first volume in a first storage format on the storage device. The computing device may thereafter execute a second type of storage software which configures a second volume in a second storage format on the storage device. Subsequently, the data of the first volume is migrated to the second volume where the data is stored in the second storage format. In some cases, the second storage software may further define a virtual external device on the storage device and define a logical path from the virtual external device to the first volume. The logical path may be used to migrate the data from the first volume to the second volume.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: March 17, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Yuki Sakashita, Akira Yamamoto
  • Publication number: 20200073584
    Abstract: When a second storage device in a second site receives an update notification regarding a first element updated according to a write request from a first host, from a first storage device in a first site, for a second element specified on the basis of the update notification, the second storage device manages data of the first element corresponding to the second element as latest data. The first storage device provides a first volume capable of including a plurality of first elements. The second storage device provides a second volume capable of including a plurality of second elements corresponding to the plurality of first elements. When the second storage device receives a read request from a second host, the second storage device determines whether or not data of the first element corresponding to a read source second element (second element specified from the read request) is the latest data.
    Type: Application
    Filed: August 3, 2017
    Publication date: March 5, 2020
    Inventors: Akiyoshi TSUCHIYA, Keiichi MATSUZAWA, Mitsuo HAYASAKA, Akira YAMAMOTO
  • Patent number: 10572171
    Abstract: A storage system according to an aspect of the present invention includes one or more storage devices for storing write data to which a write request from a host computer is directed, and a storage controller that provides one or more volumes to the host computer. Further, the storage system manages the time when a write request is last received from the host computer for each partition within the volume. Then, the storage controller performs a deduplication process upon detecting the partition not receiving a write request for a predetermined time or more from the time when the write request is last received.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: February 25, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Nobumitsu Takaoka, Akira Yamamoto, Tomohiro Kawaguchi, Yasuo Watanabe, Yoshihiro Yoshii, Kazuki Matsugami
  • Publication number: 20200046739
    Abstract: Provided herein is a topical composition and related methods for making and using the composition. In a first aspect, the topical composition comprises minocycline, a magnesium salt, and a sulfite compound in a non-aqueous solvent. In yet another aspect, the topical composition comprises a tetracycline-class drug, a source of magnesium, a monohydric aliphatic alcohol, and a polyol, wherein (i) the ratio between the monohydric aliphatic alcohol and the propylene glycol is in the range of 1:1 to 99:1 by weight and (ii) the tetracycline-class drug is dissolved in the topical composition.
    Type: Application
    Filed: July 17, 2019
    Publication date: February 13, 2020
    Inventors: Xin Chen, Maiko C. Hermsmeier, Diana Lac, Douglas W. Thomas, Noymi Yam, Akira Yamamoto