Patents by Inventor Masaaki Maruyama

Masaaki Maruyama 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: 11959932
    Abstract: According to one embodiment, an automatic analyzing apparatus includes a probe and a liquid level detector. The liquid level detector is electrically connected to the probe and detects contact between the probe and a liquid surface, wherein the liquid level detector comprises an adjuster configured to adjust electrostatic capacitance of one or more capacitors for circuitry for use in liquid level detection.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: April 16, 2024
    Assignee: Canon Medical Systems Corporation
    Inventors: Mitsuo Okamoto, Naoto Sato, Reiko Maruyama, Masaaki Saitou, Atsushi Hosooka, Tamaki Honda
  • Patent number: 11421912
    Abstract: Provided is a packing material which packs at least a unit main body of an air conditioner to be installed in a ceiling, the packing material including: a cover part for covering an opening part through which components inside the unit main body are exposed; and a cut and bent up part which has a slit part for inserting a protruding portion of the unit main body and fixes the cover part on the unit main body. The packing material can eliminate the need for a curing sheet and a tape for fixing the curing sheet while keeping out dust etc.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: August 23, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaaki Maruyama, Takaaki Takishita, Tatsuo Furuta, Hiroyuki Hatakeyama, Naoya Matsunaga, Takahiro Komatsu
  • Patent number: 11057874
    Abstract: A communication control device comprises: a transmission unit which transmits, to each of a plurality of communication devices that perform communication using previously allocated communication resources, allocation information indicating the allocation of the communication resources to be used when the communication devices perform communication; and an intermediate state generation unit which, when the allocation of the communication resources to the respective communication devices is changed from a first allocation state to a second allocation state, generates an intermediate state indicating the allocation of the communication resources, on the basis of the first allocation state and the second allocation state, wherein the transmission unit transmits the allocation information to each of the communication devices such that the allocation changes from the first allocation state to the second allocation state via the intermediate state generated by the intermediate state generation unit.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: July 6, 2021
    Assignee: NEC CORPORATION
    Inventors: Shohei Mitani, Nobuhito Taniuchi, Masaaki Maruyama
  • Publication number: 20200158374
    Abstract: Provided is a packing material which packs at least a unit main body of an air conditioner to be installed in a ceiling, the packing material including: a cover part for covering an opening part through which components inside the unit main body are exposed; and a cut and bent up part which has a slit part for inserting a protruding portion of the unit main body and fixes the cover part on the unit main body. The packing material can eliminate the need for a curing sheet and a tape for fixing the curing sheet while keeping out dust etc.
    Type: Application
    Filed: December 31, 2019
    Publication date: May 21, 2020
    Inventors: Masaaki MARUYAMA, Takaaki TAKISHITA, Tatsuo FURUTA, Hiroyuki HATAKEYAMA, Naoya MATSUNAGA, Takahiro KOMATSU
  • Patent number: 10352573
    Abstract: A mount unit for mounting a decorative panel on an underside of an air-conditioning apparatus main body includes a decorative panel mount fitting having a screw engagement hole that communicates with the screw insertion hole of the decorative panel and a claw that is fitted into the claw engagement hole formed on each side of the screw insertion hole of the decorative panel and a decorative panel mount screw, and is configured to be held by the decorative panel without being dropped off when the claw is fitted into the claw engagement hole and the decorative panel mount screw is engaged with the screw engagement hole with a head being oriented downward, and the decorative panel is mounted on the air-conditioning apparatus main body when the decorative panel mount screw held on the decorative panel is screwed into the screw fastening hole of the air-conditioning apparatus main body via the screw insertion hole.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: July 16, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Hatakeyama, Masaaki Maruyama, Takaaki Takishita, Naoya Matsunaga, Tatsuo Furuta
  • Publication number: 20190098609
    Abstract: A communication control device comprises: a transmission unit which transmits, to each of a plurality of communication devices that perform communication using previously allocated communication resources, allocation information indicating the allocation of the communication resources to be used when the communication devices perform communication; and an intermediate state generation unit which, when the allocation of the communication resources to the respective communication devices is changed from a first allocation state to a second allocation state, generates an intermediate state indicating the allocation of the communication resources, on the basis of the first allocation state and the second allocation state, wherein the transmission unit transmits the allocation information to each of the communication devices such that the allocation changes from the first allocation state to the second allocation state via the intermediate state generated by the intermediate state generation unit.
    Type: Application
    Filed: March 15, 2017
    Publication date: March 28, 2019
    Applicant: NEC Corporation
    Inventors: Shohei MITANI, Nobuhito TANIUCHI, Masaaki MARUYAMA
  • Patent number: 10119746
    Abstract: An indoor unit according to the present invention includes a securing plate provided at an upper edge of a sidewall of a drain pan that collects drain water generated from an indoor heat exchanger, and an antimicrobial-agent-containing case that contains an antimicrobial agent and includes a case frame positioned in an area where the drain water is collected, a case-attaching portion conforming to the securing plate and being detachably attached to the securing plate, and an arm connecting the case frame and the case-attaching portion. The antimicrobial-agent-containing case is attached to the securing plate from an opening of an air inlet from which air is taken into a body.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: November 6, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaaki Maruyama, Takaaki Takishita, Akinori Toyoda, Tatsuo Furuta, Hiroyuki Hatakeyama, Naoya Matsunaga, Takahiro Komatsu
  • Patent number: 9958181
    Abstract: An indoor unit of an air-conditioning apparatus includes vanes, vane shafts and, which are disposed at the ends of the vanes, vane bearings and, which hold the vane shafts and, and motors, each of which is mounted on a corresponding one of the vane shafts and each of which causes a corresponding one of the vanes to rotate. Each of the vane shafts is provided with a rib, and each of the vane bearings, which hold the corresponding vane shafts, is provided with a hook portion. When one of the vane shafts moves by a reference movement amount in a direction toward the corresponding vane shaft, the corresponding rib and the corresponding hook portion engage with each other, so that movement of the vane shaft is restricted.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: May 1, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naoya Matsunaga, Masaaki Maruyama
  • Publication number: 20180026736
    Abstract: To provide a wireless communication system, a base station device, a mobile station device, and a wireless communication control method that use a time division multiple access scheme, and enable a reduction in the power consumption of the base station. This wireless communication system performs communication by a time division multiple access (TDMA) scheme, and comprises a mobile station, and a base station that communicates with the mobile station and stops transmission of a signal including control information related to communication connection when there is no mobile station therearound.
    Type: Application
    Filed: February 18, 2016
    Publication date: January 25, 2018
    Applicant: NEC Corporation
    Inventors: Shohei MITANI, Nobuhito TANIUCHI, Masaaki MARUYAMA
  • Publication number: 20160245578
    Abstract: An indoor unit according to the present invention includes a securing plate provided at an upper edge of a sidewall of a drain pan that collects drain water generated from an indoor heat exchanger, and an antimicrobial-agent-containing case that contains an antimicrobial agent and includes a case frame positioned in an area where the drain water is collected, a case-attaching portion conforming to the securing plate and being detachably attached to the securing plate, and an arm connecting the case frame and the case-attaching portion. The antimicrobial-agent-containing case is attached to the securing plate from an opening of an air inlet from which air is taken into a body.
    Type: Application
    Filed: October 9, 2014
    Publication date: August 25, 2016
    Inventors: Masaaki MARUYAMA, Takaaki TAKISHITA, Akinori TOYODA, Tatsuo FURUTA, Hiroyuki HATAKEYAMA, Naoya MATSUNAGA, Takahiro KOMATSU
  • Publication number: 20160123606
    Abstract: A mount unit for mounting a decorative panel on an underside of an air-conditioning apparatus main body includes a decorative panel mount fitting having a screw engagement hole that communicates with the screw insertion hole of the decorative panel and a claw that is fitted into the claw engagement hole formed on each side of the screw insertion hole of the decorative panel and a decorative panel mount screw, and is configured to be held by the decorative panel without being dropped off when the claw is fitted into the claw engagement hole and the decorative panel mount screw is engaged with the screw engagement hole with a head being oriented downward, and the decorative panel is mounted on the air-conditioning apparatus main body when the decorative panel mount screw held on the decorative panel is screwed into the screw fastening hole of the air-conditioning apparatus main body via the screw insertion hole.
    Type: Application
    Filed: July 23, 2014
    Publication date: May 5, 2016
    Inventors: Hiroyuki HATAKEYAMA, Masaaki MARUYAMA, Takaaki TAKISHITA, Naoya MATSUNAGA, Tatsuo FURUTA
  • Publication number: 20160102906
    Abstract: An indoor unit includes a case having an opening part on a lower surface thereof when the indoor unit is installed, and a decorative panel having a substantially rectangular air inlet being open to the opening part of the case and being attached to the lower surface of the case. The decorative panel has temporary hanging levers attached to opposed positions shifted to be parallel from midpoints on any opposed two of four sides on edges of the air inlet toward any opposed vertexes. The case has temporary hanging hooks corresponding to the temporary hanging levers on edges of the opening part.
    Type: Application
    Filed: May 29, 2014
    Publication date: April 14, 2016
    Inventors: Tatsuo FURUTA, Masaaki MARUYAMA, Takaaki TAKISHITA
  • Publication number: 20150276261
    Abstract: Provided is a packing material which packs at least a unit main body of an air conditioner to be installed in a ceiling, the packing material including: a cover part for covering an opening part through which components inside the unit main body are exposed; and a cut and bent up part which has a slit part for inserting a protruding portion of the unit main body and fixes the cover part on the unit main body. The packing material can eliminate the need for a curing sheet and a tape for fixing the curing sheet while keeping out dust etc.
    Type: Application
    Filed: February 4, 2015
    Publication date: October 1, 2015
    Inventors: Masaaki MARUYAMA, Takaaki TAKISHITA, Tatsuo FURUTA, Hiroyuki HATAKEYAMA, Naoya MATSUNAGA, Takahiro KOMATSU
  • Publication number: 20150176856
    Abstract: An indoor unit 1 includes: an airflow direction louver 4 that rotates about a vane shaft 4a and changes a direction of air that is blowing from an air outlet 3b; and a louver gear 10 that transmits a force from a vane drive motor part 9 to the airflow direction louver 4. The airflow direction louver 4 has an insertion indicator such as a nail. The louver gear 10 has a fitting hole 10a that allows the insertion indicator to become visible when the airflow direction louver 4 is inserted into a bearing hole 10b of the louver gear 10 and reaches the bottom of a bearing hole 10b.
    Type: Application
    Filed: October 29, 2014
    Publication date: June 25, 2015
    Inventors: Takaaki TAKISHITA, Masaaki MARUYAMA, Tatsuo FURUTA, Hiroyuki HATAKEYAMA, Naoya MATSUNAGA, Takahiro KOMATSU
  • Publication number: 20150038068
    Abstract: An indoor unit of an air-conditioning apparatus includes vanes, vane shafts and, which are disposed at the ends of the vanes, vane bearings and, which hold the vane shafts and, and motors, each of which is mounted on a corresponding one of the vane shafts and each of which causes a corresponding one of the vanes to rotate, Each of the vane shafts is provided with a rib, and each of the vane bearings, which hold the corresponding vane shafts, is provided with a hook portion. When one of the vane shafts moves by a reference movement amount in a direction toward the corresponding vane shaft, the corresponding rib and the corresponding hook portion engage with each other, so that movement of the vane shaft is restricted.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 5, 2015
    Inventors: Naoya MATSUNAGA, Masaaki MARUYAMA
  • Patent number: 7373796
    Abstract: The invention is aimed at the provision of an automatic releasing-type rolling head for forming a tapered thread on a pipe in which the shock generated at the end of the thread rolling operation is alleviated and a thread automatic rolling roller retracting mechanism is not damaged. The rolling head includes shaft bearing plates 33 which are slidably supported in a plurality of guide grooves 36 radially provided on inner surfaces of the front and rear closures of the housing 30 and which are provided on their outer surfaces in the radial directions with oblique surfaces 33b, thread rolling rollers 35 rotatably supported by the shaft bearing plates 33, a cam ring 31 which rotates in the housing 30 and has cam oblique surfaces 31a opposed to the oblique surfaces 33b of the shaft bearing plates 33, a lever 44 which abuts at its oblique surface against a cam member 45 to prevent movement thereof in association with the cam ring 31 and an abutment member 41 which is pressed and moved by a thread-rolled pipe.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: May 20, 2008
    Assignee: Rex Industries Co., Ltd.
    Inventors: Toshifumi Kubota, Masaaki Maruyama, Hideyuki Aiura, Makoto Sakaguchi
  • Publication number: 20060162411
    Abstract: The invention is aimed at the provision of an automatic releasing-type rolling head for forming a tapered thread on a pipe in which the shock generated at the end of the thread rolling operation is alleviated and a thread automatic rolling roller retracting mechanism is not damaged. The rolling head includes shaft bearing plates 33 which are slidably supported in a plurality of guide grooves 36 radially provided on inner surfaces of the front and rear closures of the housing 30 and which are provided on their outer surfaces in the radial directions with oblique surfaces 33b, thread rolling rollers 35 rotatably supported by the shaft bearing plates 33, a cam ring 31 which rotates in the housing 30 and has cam oblique surfaces 31a opposed to the oblique surfaces 33b of the shaft bearing plates 33, a lever 44 which abuts at its oblique surface against a cam member 45 to prevent movement thereof in association with the cam ring 31 and an abutment member 41 which is pressed and moved by a thread-rolled pipe.
    Type: Application
    Filed: December 4, 2003
    Publication date: July 27, 2006
    Inventors: Toshifumi Kubota, Masaaki Maruyama, Hideyuki Aiura, Makoto Sakaguchi
  • Patent number: 5699691
    Abstract: An adjusting apparatus for a roll threading die head with a head body having a plurality of threading rollers located on an imaginary circle concentrical to an axis of a cylindrical workpiece to be threaded. There are provided eccentric bearings which rotatably support the corresponding threading rollers and which are rotatable about axes eccentric with respect to the axes of rotation of the respective threading rollers. The eccentric bearings are simultaneously rotated by a rotor about their axes by the same angular displacement.
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: December 23, 1997
    Assignee: Rex Industries Co., Ltd.
    Inventor: Masaaki Maruyama
  • Patent number: 5243314
    Abstract: A magnetic holding device is provided that includes at least one electromagnet assembly for selectively switching a holding portion for a magnetic substance into an excited state or an unexcited state; and a permanent magnet for selectively keeping the holding portion in an excited state or an unexcited state in cooperation with the electromagnet assembly.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: September 7, 1993
    Assignee: Kanetec Kabushiki Kaisha
    Inventor: Masaaki Maruyama
  • Patent number: 4443943
    Abstract: A pipe cutter comprising a guide member, a pair of supporting arms which are slidably arranged on the guide member, rotatable supporting rollers which hold a pipe to be cut on at least three points of the peripery thereof, a sliding member having a cutting tool fixed thereto, which is mounted on one of the supporting arms, and a feed screw shaft provided with a handle and screwed to the sliding member, wherein by turning the feed screw shaft, the sliding member and cutting tool can be moved in a predetermined direction, the improvement comprising a frictional clutch which is interposed between said handle and said feed screw shaft so that rotation of the handle is transmitted to the feed screw shaft only when the cutting resistance acting on the side of the feed screw shaft is smaller than a predetermined value.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: April 24, 1984
    Assignee: Rex Industries Co., Ltd.
    Inventor: Masaaki Maruyama