Patents by Inventor Masami Nakagawa

Masami Nakagawa 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).

  • Publication number: 20240101923
    Abstract: This disclosure describes a zinc-free lubricating oil composition. The composition includes a major amount of an oil of lubricating viscosity having a kinematic viscosity at 100° C. in a range of about 1.5 to about 35 mm2/s and an anti-wear mixture having one or more ashless dispersants and an alkyl phosphonic acid having a structure given by wherein R is a C3-C20 hydrocarbyl group. The initial pH of the anti-wear mixture is between 5-9.5 as measured by ASTM D664.
    Type: Application
    Filed: September 14, 2021
    Publication date: March 28, 2024
    Applicant: CHEVRON JAPAN LTD.
    Inventors: Masami FUCHI, Naoya SASAKI, Takahiro NAKAGAWA, Satoshi OHTA, Naoki MASUDA, Koichi KUBO
  • Publication number: 20210316250
    Abstract: A thermo-sensitive draw solute including a polyoxyalkylene adduct represented by a general formula (1): R1O(AO)nR2 (1), where R1 denotes a residue after withdrawal of a hydroxy group from a monovalent alcohol having a carbon number ranging from 6 to 13, R2 denotes a hydrogen atom or denotes an alkyl group or an alkenyl group having a carbon number ranging from 1 to 13, AO denotes an oxyalkylene group having a carbon number ranging from 2 to 4, n denotes an average added mole number of an alkylene oxide ranging from 1 to 235, and where n is two or more, the two or more AOs may be the same or different from each other.
    Type: Application
    Filed: August 5, 2019
    Publication date: October 14, 2021
    Inventors: Aya OSATO, Takeshi TSUJi, Koji FUCHIGAMI, Keiji TOMURA, Shigeki FUJIWARA, Makcto KUNUGI, Yuya SATO, Eri WATANABE, Masami NAKAGAWA, Sohei HAMAGUCHI, Koji KUBO
  • Patent number: 9682843
    Abstract: When a specific destination floor call is made, the control unit assigns an elevator of which waiting time is within the reference time from the plurality of elevators to the specific destination floor call, the waiting time being a time from a time when the specific destination floor call is made to a time when the specific user can get on an elevator at the specific floor. Further, when a general destination floor call is made, the control unit assigns one of the plurality of elevators in response to the general destination floor call such that an elevator of which waiting time to the specific destination floor call that is made after the general destination floor call is within the reference time is left.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: June 20, 2017
    Assignee: FUJITEC CO., LTD.
    Inventor: Masami Nakagawa
  • Patent number: 9447502
    Abstract: Provided is a means for fixing calcium phosphate onto the surface of a metal by a treatment method which uses no acid and produces less residue. A method of producing a calcium phosphate composite in which calcium phosphate is bonded to the surface of a base material, the method including a surface treatment step of bringing the surface of the base material into contact with a surface treating agent, and then into contact with a silane coupling agent, to surface treat the base material; a polymerization step of initiating, after the surface treatment step, polymerization of the silane coupling agent by means of a polymerization initiator; and a bonding step of bonding the silane coupling agent at the surface of the base material after the polymerization step, with calcium phosphate; wherein the base material is a metal, and the surface treating agent is ozone water.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: September 20, 2016
    Assignees: IWATANI CORPORATION, SOFSERA CORPORATION
    Inventors: Kunihiko Koike, Yasumichi Kogai, Masami Nakagawa
  • Publication number: 20150090535
    Abstract: When a specific destination floor call is made, the control unit assigns an elevator of which waiting time is within the reference time from the plurality of elevators to the specific destination floor call, the waiting time being a time from a time when the specific destination floor call is made to a time when the specific user can get on an elevator at the specific floor. Further, when a general destination floor call is made, the control unit assigns one of the plurality of elevators in response to the general destination floor call such that an elevator of which waiting time to the specific destination floor call that is made after the general destination floor call is within the reference time is left.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Applicant: FUJITEC CO., LTD.
    Inventor: Masami Nakagawa
  • Patent number: 8960374
    Abstract: Provided are a group control method and a group control device capable of efficiently controlling the operation of elevators in diversified traffic situations and under a variety of specification conditions required for a group management system. A plurality of elevators are placed in service for a plurality of floors, an evaluation index for a newly made hall call is calculated, and the best suited car is selected and assigned to the hall call based on the evaluation index in the group control method of elevators. A waiting time expectation value of all passengers on all floors for each direction, either that have already occurred or that are expected to occur within a predetermined time period, is taken as the evaluation index, the waiting time expectation value being the expectation value for the sum or the average of waiting time.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: February 24, 2015
    Assignee: Fujitec Co., Ltd.
    Inventor: Masami Nakagawa
  • Patent number: 8699119
    Abstract: Electronic paper 100 according to the present invention includes a first substrate 10 with first electrodes 14, a second substrate 20 with second electrodes 24, and a powder sheet structure 50 arranged between the first substrate 10 and the second substrate 20. The powder sheet structure 50 includes a bottom substrate 52 and a top substrate 54 opposed to each other, a dividing wall layer 56 including dividing walls 55 arranged between the bottom substrate 52 and the top substrate 54, and powder particles 30 enclosed between the adjacent dividing walls 55 in the dividing wall layer 56. The powder sheet structure is arranged so that the bottom substrate is opposed to the first electrodes of the first substrate, and that the top substrate is opposed to the second electrodes of the second substrate.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: April 15, 2014
    Assignee: Panasonic Corporation
    Inventors: Masami Nakagawa, Akinori Toyoda
  • Patent number: 8593720
    Abstract: Provided is an electronic paper that permits a high-quality, large area to be easily created. Also provided is a method for producing the electronic paper. The electronic paper comprises: a first substrate upon which first electrodes are formed and a second substrate upon which second electrodes are formed, said first substrate and second substrate disposed so as to face each other; and a plurality of cell spaces constituting pixels between said first substrate and second substrate. The first substrate comprises a plurality of first sheet members, each having a first electrode formed thereon. By disposing a cover substrate on said first sheet members, each with a partition wall therebetween, a plurality of subsheet formations comprising the plurality of cell spaces partitioned by the partition walls are formed, and the first electrodes are connected in between adjacent subsheet formations.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: November 26, 2013
    Assignee: Panasonic Corporation
    Inventors: Koichi Hirano, Masami Nakagawa, Seiichi Nakatani
  • Patent number: 8580347
    Abstract: A method of the present invention for producing a calcium phosphate complex including a substrate and calcium phosphate bonded to a surface of the substrate, the method includes the steps of: (a) treating the surface of the substrate; and (b) bonding the calcium phosphate onto the surface of the substrate after the step (a), the step (a) being the step of placing the surface of the substrate in contact with ozone water. Therefore, the method of the present invention makes it possible to bond calcium phosphate and the substrate at a high bonding strength and at a high coverage. In addition, the method of the present invention provides an easy method for producing a calcium phosphate complex.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: November 12, 2013
    Assignees: Iwatani Corporation, National Cerebral and Cardiovascular Center
    Inventors: Kunihiko Koike, Masami Nakagawa, Tsutomu Furuzono
  • Publication number: 20120114832
    Abstract: Provided is a means for fixing calcium phosphate onto the surface of a metal by a treatment method which uses no acid and produces less residue. A method of producing a calcium phosphate composite in which calcium phosphate is bonded to the surface of a base material, the method including a surface treatment step of bringing the surface of the base material into contact with a surface treating agent, and then into contact with a silane coupling agent, to surface treat the base material; a polymerization step of initiating, after the surface treatment step, polymerization of the silane coupling agent by means of a polymerization initiator; and a bonding step of bonding the silane coupling agent at the surface of the base material after the polymerization step, with calcium phosphate; wherein the base material is a metal, and the surface treating agent is ozone water.
    Type: Application
    Filed: April 30, 2009
    Publication date: May 10, 2012
    Applicants: SOFSERA CORPORATION, IWATANI CORPORATION
    Inventors: Kunihiko Koike, Yasumichi Kogai, Masami Nakagawa
  • Publication number: 20120113500
    Abstract: Provided is an electronic paper that permits a high-quality, large area to be easily created. Also provided is a method for producing the electronic paper. The electronic paper comprises: a first substrate upon which first electrodes are formed and a second substrate upon which second electrodes are formed, said first substrate and second substrate disposed so as to face each other; and a plurality of cell spaces constituting pixels between said first substrate and second substrate. The first substrate comprises a plurality of first sheet members, each having a first electrode formed thereon. By disposing a cover substrate on said first sheet members, each with a partition wall therebetween, a plurality of subsheet formations comprising the plurality of cell spaces partitioned by the partition walls are formed, and the first electrodes are connected in between adjacent subsheet formations.
    Type: Application
    Filed: April 14, 2011
    Publication date: May 10, 2012
    Inventors: Koichi Hirano, Masami Nakagawa, Seiichi Nakatani
  • Publication number: 20120105942
    Abstract: Electronic paper 100 according to the present invention includes a first substrate 10 with first electrodes 14, a second substrate 20 with second electrodes 24, and a powder sheet structure 50 arranged between the first substrate 10 and the second substrate 20. The powder sheet structure 50 includes a bottom substrate 52 and a top substrate 54 opposed to each other, a dividing wall layer 56 including dividing walls 55 arranged between the bottom substrate 52 and the top substrate 54, and powder particles 30 enclosed between the adjacent dividing walls 55 in the dividing wall layer 56. The powder sheet structure is arranged so that the bottom substrate is opposed to the first electrodes of the first substrate, and that the top substrate is opposed to the second electrodes of the second substrate.
    Type: Application
    Filed: January 25, 2011
    Publication date: May 3, 2012
    Inventors: Masami Nakagawa, Akinori Toyoda
  • Publication number: 20110284329
    Abstract: Provided are a group control method and a group control device capable of efficiently controlling the operation of elevators in diversified traffic situations and under a variety of specification conditions required for a group management system. A plurality of elevators are placed in service for a plurality of floors, an evaluation index for a newly made hall call is calculated, and the best suited car is selected and assigned to the hall call based on the evaluation index in the group control method of elevators. A waiting time expectation value of all passengers on all floors for each direction, either that have already occurred or that are expected to occur within a predetermined time period, is taken as the evaluation index, the waiting time expectation value being the expectation value for the sum or the average of waiting time.
    Type: Application
    Filed: December 25, 2009
    Publication date: November 24, 2011
    Applicant: FUJITEC CO., LTD.
    Inventor: Masami Nakagawa
  • Publication number: 20100247736
    Abstract: A method of the present invention for producing a calcium phosphate complex including a substrate and calcium phosphate bonded to a surface of the substrate, the method includes the steps of: (a) treating the surface of the substrate; and (b) bonding the calcium phosphate onto the surface of the substrate after the step (a), the step (a) being the step of placing the surface of the substrate in contact with ozone water. Therefore, the method of the present invention makes it possible to bond calcium phosphate and the substrate at a high bonding strength and at a high coverage. In addition, the method of the present invention provides an easy method for producing a calcium phosphate complex.
    Type: Application
    Filed: October 23, 2008
    Publication date: September 30, 2010
    Inventors: Kunihiko Koike, Masami Nakagawa, Tsutomu Furuzono
  • Patent number: 6252683
    Abstract: A video printing apparatus feeds sheets of printing media from the lower front portion of the apparatus housing and ejects the print media at the upper front portion of the apparatus housing. The apparatus comprises a feed tray to be loaded with printing media, a feeding unit to feed the printing media into the inside of the apparatus, a transport unit to transport the printing media fed by the feeding unit, a switching unit provided between the feeding unit and the transport unit to switch over the transport route of the printing media, at least one detecting unit provided between the switching unit and the transport unit to detect the printing media, a printing unit to transfer printing onto the printing media, an ejection unit to eject the printing media after they have been printed by the printing unit, and an ejection tray to store the printing media ejected by the ejection unit.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: June 26, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takayuki Kawamura, Masami Nakagawa, Tetsuya Hokamura, Takashi Koike
  • Patent number: 5839838
    Abstract: An image printer comprising: a printing member for printing dye on a recording medium; a dye medium take-up member for taking up a dye medium to which the dye is applied; a first power transmission member for transmitting power to the dye medium take-up member; a recording medium transporting member for transporting the recording medium; a drive member for driving the dye medium take-up member and the recording medium transporting member, which can be driven forwardly and reversely; a pivotal member which is pivotal in response to rotation of the recording medium transporting member; a second power transmission member for transmitting power from the recording medium transporting member to the first power transmission member, which is mounted on the pivotal member; an urging member for bringing the recording medium transporting member into contact with the pivotal member so as to transmit driving force of the recording medium transporting member to the pivotal member; and a preventive member for selectively pr
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: November 24, 1998
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuya Hokamura, Masami Nakagawa, Takayuki Kawamura, Takashi Koike
  • Patent number: 5767461
    Abstract: An elevator group supervisory control system for selecting the most suitable car among a plurality of elevators, when a hall call is made, to assign to the hall call, comprising: temporary assigning means for temporarily assigning the car by a conventional method such as a fuzzy group supervisory control based on group data representing states of the elevator system at the moment when a new hall call is made; and a neural net for receiving numerical values converted from group data including the result of judgment of the temporary assigning means and outputting an assignment fitness of each elevator. It decides the most suitable elevator from the output pattern of the neural net to assign to the hall call.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: June 16, 1998
    Assignee: Fujitec Co., Ltd.
    Inventors: Masami Nakagawa, Kenji Sasaki, Sandor Markon, Ichiro Nagashima, Takeshi Midoritani, Tomoaki Tanabe, Naoki Ohta
  • Patent number: 4401998
    Abstract: A plurality of magnetic styli are arranged in a row for effecting a line recording. A magnetic styli are magnetized by a magnet held in contact with these styli so that a magnetic fluid attaching to the styli is protruded from each stylus to form continuous wave-like protrusions along the row of the styli. The magnetic fluid protruded from the styli is to fly or migrate as a high voltage is applied selectively between the styli and a control electrode which opposes to the styli across the recording paper, due to a Coulomb force acting on the ends of the protrusions. In consequence, a recording is made by the magnetic fluid serving as an ink on the recording paper in accordance with a recording signal. A predetermined head or height differential is preserved between the magnet and an ink tank. The magnet and the ink tank are connected to each other by means of a pipe filled with the magnetic fluid. A slight gap is formed in the connection between the pipe and the magnet.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: August 30, 1983
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaharu Ushihara, Michinori Nagahiro, Humio Yamazaki, Masami Nakagawa, Noboru Miyaji, Susumu Maruno
  • Patent number: 4359752
    Abstract: A recording apparatus which uses magneto-fluidic material comprising a magnetic multi-stylus head arranged in parallel to oppose a recording plane, a magnet fixed to the multi-stylus head near a tip end thereof, apparatus for supplying magneto-fluidic material to at least one point of the magnet and apparatus for causing the magneto-fluidic material on the multi-stylus to selectively be flung, wherein a plurality of areas of concentration of lines of magnetic force are formed on at least one of outer surfaces of the magnet in order to stabilize the supply of the magneto-fluidic material for the comsumption of the magneto-fluidic material on the multi-stylus head due to the flying of the magneto-fluidic material.
    Type: Grant
    Filed: October 21, 1980
    Date of Patent: November 16, 1982
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masami Nakagawa, Wataru Shimotsuma, Yoshio Kishimoto, Yoichi Sekine