Patents by Inventor Takashi Kai

Takashi Kai 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: 10476161
    Abstract: A loop antenna includes: a substrate; a feeding element including a first portion and a second portion which are provided on a first surface of the substrate, have electrical conductivity, are fed with electric power from a feeding point, the first portion extending from the feeding point in a first direction, the second portion extending from the feeding point in a second direction; and an emitting element which has electrical conductivity, is formed in a loop shape in such a manner that the emitting element surrounds the substrate along a surface perpendicular to the first surface, and includes a first end provided so as to electromagnetically couple to the first portion on the first surface and a second end provided so as to electromagnetically couple to the second portion on the first surface, a gap being disposed between the first end and the second end.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: November 12, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Takashi Yamagajo, Manabu Kai
  • Patent number: 10454176
    Abstract: An antenna apparatus includes a ground plane having an edge; a monopole type first antenna element having a first feed point and configured to communicate at a first frequency; and a monopole type second antenna element having a second feed point and configured to communicate at a second frequency, the second antenna element extending from the second feed point in a direction away from the edge. An end portion of the first antenna element is arranged closer to the ground plane than an end portion of the second antenna element is. A length of an interval between the first feed point and the second feed point is in a range of from 0.25-fold to 0.7-fold of an electrical length of a first wavelength at the first frequency. A length of the second antenna element is a length in a range of from 0.15-fold to 0.55-fold of the electrical length.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 22, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Yohei Koga, Takashi Yamagajo, Manabu Kai, Mitsuharu Hoshino, Masatomo Mori
  • Patent number: 10452808
    Abstract: A non-transitory computer-readable storage medium storing an antenna design program that causes a computer to execute a process, the process including acquiring a target characteristic value of a target antenna when a value of a structure parameter is a predetermined value, based on the predetermined value of the structure parameter, the target characteristic value, and a relation, with respect to a reference antenna, between a value of a structure parameter and a characteristic value, estimating the relation with respect to the target antenna, the reference antenna having a same shape feature as the target antenna, an antenna type of the reference antenna being different from the target antenna, determining a value of the structure parameter for the target antenna such that the characteristic value of the target antenna satisfies a demanded specification based on the estimated relation, and outputting the determined value of the structure parameter.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: October 22, 2019
    Assignee: Fujitsu Limited
    Inventors: Yohei Koga, Manabu Kai, Takashi Yamagajo, Yasumitsu Ban, Hiroyuki Egawa, Kan Fujieda
  • Publication number: 20190286765
    Abstract: An antenna design apparatus includes a memory; and a processor coupled to the memory, wherein the processor calculates at least one circuit element value of a matching circuit for an antenna including loss resistance using S parameter data stored in the memory, obtains combined S parameter data in which a portion of the loss resistance of the matching circuit is incorporated in characteristics of the antenna by calculating the S parameter data while loss resistance of one of the calculated at least one circuit element value of the matching circuit which is disposed on a port side is incorporated in the characteristics of the antenna, and recalculates the at least one circuit element value of the matching circuit when the matching circuit is coupled to the antenna such that the at least one circuit element value matches the combined S parameter.
    Type: Application
    Filed: January 15, 2019
    Publication date: September 19, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Takashi YAMAGAJO, Sotaro KURIBAYASHI, Manabu KAI
  • Patent number: 10403639
    Abstract: An array of memory stack structures extends through an alternating stack of insulating layers and electrically conductive layers over a substrate. An array of drain select level assemblies including cylindrical electrode portions is formed over the alternating stack with the same periodicity as the array of memory stack structures. A drain select level isolation strip including dielectric materials can be formed between a neighboring pair of drain select level assemblies employing the drain select level assemblies as a self-aligning template. Alternatively, cylindrical electrode portions can be formed around an upper portion of each memory stack structure. Strip electrode portions are formed on the cylindrical electrode portions after formation of the drain select level isolation strip.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: September 3, 2019
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Takashi Orimoto, James Kai, Sayako Nagamine, Takaaki Iwai, Shigeyuki Sugihara, Shuji Minagawa
  • Publication number: 20190214725
    Abstract: A multiband antenna includes a ground conductor, a first conductor disposed at a predetermined distance from the ground conductor, formed linearly, and configured to have a length to resonate at first and second frequencies, the first conductor including a power feeding point, a second conductor coupled to the first conductor at both ends of the second conductor, disposed closer to a side of the ground conductor than the first conductor, formed linearly, and configured to form a slit between the first and second conductors and resonate together with the first conductor at a third frequency, and a third conductor provided at one or more ends of the first conductor and configured to extend from a first end of the one or more ends to the side of the ground conductor to be electromagnetically coupled to the ground conductor at the third frequency, wherein the conductors has conductivity.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Yohei KOGA, Manabu KAI, Masatomo MORI, Tabito TONOOKA, Takashi YAMAGAJO
  • Publication number: 20190214726
    Abstract: An antenna device includes a ground plane having an edge side, a monopole antenna element that communicates in a first frequency, and that has a first feeding point, a first line that extends from the first feeding point in a direction away from the edge side of the ground plane, and a second line that is coupled to the first line and extends along the edge side, a plurality of dipole feeding elements that communicate at a second frequency higher than the first frequency, and are disposed, with respect to the ground plane, in positions that match the positions of the second line with respect to the ground plane, and a plurality of reflectors that reflect electromagnetic waves radiated by the plurality of feeding elements, and are disposed respectively in correspondence to the plurality of feeding elements between the ground plane and the plurality of feeding elements.
    Type: Application
    Filed: December 20, 2018
    Publication date: July 11, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Takashi YAMAGAJO, Manabu Kai, Yohei Koga, Tablto Tonooka, Hirotake Sumi
  • Publication number: 20190190124
    Abstract: An antenna device includes: a ground plane which has an edge side; a metal member arranged along the edge side of the ground plane; a first connection line which couples the metal member and the ground plane; a second connection line which couples the metal member and the ground plane; and a power feeding element which has a power feeding point, extends along the metal member from the power feeding point between the first connection line and the second connection line, and is electromagnetic-field-coupled to the metal member.
    Type: Application
    Filed: February 26, 2019
    Publication date: June 20, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Yohei KOGA, Takashi YAMAGAJO, Manabu KAI, Tabito TONOOKA
  • Patent number: 10297610
    Abstract: An array of memory stack structures extends through an alternating stack of insulating layers and electrically conductive layers over a substrate. An array of drain select level assemblies including cylindrical electrode portions is formed over the alternating stack with the same periodicity as the array of memory stack structures. A drain select level isolation strip including dielectric materials can be formed between a neighboring pair of drain select level assemblies employing the drain select level assemblies as a self-aligning template. Alternatively, cylindrical electrode portions can be formed around an upper portion of each memory stack structure. Strip electrode portions are formed on the cylindrical electrode portions after formation of the drain select level isolation strip.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: May 21, 2019
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: James Kai, Johann Alsmeier, Shinsuke Yada, Akihisa Sai, Sayako Nagamine, Takashi Orimoto, Tong Zhang
  • Patent number: 10261520
    Abstract: A motor controller includes: an error suppression compensation unit that outputs an error suppression signal for driving the motor such that a difference between the position command signal and a signal based on the motor position signal equals zero; an acceleration extraction unit that outputs an acceleration component of a natural frequency of a stand from a stand vibration signal; an acceleration compensation unit that outputs a proportional compensation signal obtained by multiplying the stand acceleration signal by a proportional gain; a machine end correction unit that outputs a machine end correction signal, and decreases an amplitude of vibration at the machine end relative position; and an addition unit that outputs a signal obtained by adding the machine end correction signal to the error suppression signal.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: April 16, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takashi Kai, Hiroyuki Sekiguchi, Hidetoshi Ikeda, Shigeo Amigasaya
  • Publication number: 20180024572
    Abstract: A motor controller includes: an error suppression compensation unit that outputs an error suppression signal for driving the motor such that a difference between the position command signal and a signal based on the motor position signal equals zero; an acceleration extraction unit that outputs an acceleration component of a natural frequency of a stand from a stand vibration signal; an acceleration compensation unit that outputs a proportional compensation signal obtained by multiplying the stand acceleration signal by a proportional gain; a machine end correction unit that outputs a machine end correction signal, and decreases an amplitude of vibration at the machine end relative position; and an addition unit that outputs a signal obtained by adding the machine end correction signal to the error suppression signal.
    Type: Application
    Filed: February 2, 2016
    Publication date: January 25, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takashi KAI, Hiroyuki SEKIGUCHI, Hidetoshi IKEDA, Shigeo AMIGASAYA
  • Publication number: 20150206772
    Abstract: The substrate processing apparatus includes a plurality of processing units each capable of performing plural kinds of processes to a substrate under plural kinds of processing conditions, and a substrate transfer mechanism that transfers a substrate to each processing unit. In one embodiment, as an operation mode of each processing unit, a monitoring mode correlated with a processing liquid to be used can be set. When at least one of the processing units is set in the monitoring mode, the substrate transfer mechanism is not uniformly prohibited to load a product substrate to the processing unit set in the monitoring mode, but is allowed to load a product wafer to be subjected to a process correlated with a processing condition, which is different from the processing condition correlated with the monitoring mode, into any one of the at least one processing unit set in the monitoring mode.
    Type: Application
    Filed: January 16, 2015
    Publication date: July 23, 2015
    Inventors: Yuuji TAKIMOTO, Takashi KAI
  • Publication number: 20120040390
    Abstract: The present invention provides a method of intracellular introduction by which a protein and/or peptide can be efficiently introduced into living cells and which makes it possible to effectively analyze the behavior and function of the protein and/or peptide introduced and can be suitably utilized/applied, for example in the technology “live cell imaging” which realizes the immunohistochemical visualization in living cells under physiological conditions. The method of intracellular introduction is a method for introducing a protein and/or peptide into a cell, which comprises the process of introducing a conjugate generated by binding of a compound adsorbable on a cell surface to a protein and/or peptide via a polysulfide bond into a cell and treating with a reducing agent.
    Type: Application
    Filed: May 20, 2005
    Publication date: February 16, 2012
    Applicant: Nippon Shokubai Com, Ltd.
    Inventors: Junichiro Futami, Hidetaka Nakanishi, Hidenori Yamada, Takashi Kai
  • Publication number: 20110318298
    Abstract: Methods for administering a polyalkyleneimine to treat or prevent a viral infection, inactivate a virus, inhibit viral adsorption to a cell, and inhibit viral invasion of a cell are presented.
    Type: Application
    Filed: October 13, 2009
    Publication date: December 29, 2011
    Applicant: Nippon Shokubai Co., Ltd.
    Inventors: Kyoko Hayashi, Yoshie Maitani, Hiroaki Hasegawa, Takashi Kai
  • Publication number: 20050214529
    Abstract: An object of the present invention is to provide an acrylic polymer which has little skin stimulating property, is excellent in balance between the adhesive strength and the cohesive strength without using a crosslinking agent, and is useful for a pressure-sensitive adhesive layer of a pressure-sensitive adhesive material to skin, a pressure-sensitive adhesive (containing the above polymer) for pressure-sensitive adhesion to skin, and a pressure-sensitive adhesive material to skin using the above pressure-sensitive adhesive.
    Type: Application
    Filed: March 16, 2005
    Publication date: September 29, 2005
    Inventors: Hiroaki Hasegawa, Hideo Asano, Takashi Kai
  • Publication number: 20050080659
    Abstract: An electronic application system comprises a local-government-shared server, a plurality of resident terminals and a plurality of local-government terminals. The local-government-shared server includes a first network connection unit, an encoded data converter apparatus, a reference table generation unit, a reference table storage unit, an encoded data storage unit, a second network connection unit, a reference table search unit and a data access control unit. The encoded data converter apparatus converts encoded data (generated by encoding application data to be transmitted from a resident terminal to a local-government terminal) of an external protocol into encoded data of an internal protocol while securing the confidentiality of plain text data which is obtained when the encoded data is temporarily decoded. For each application data, the encoded data converter apparatus generates a reference record so that the record can be referred to before the local-government terminal obtains the application data.
    Type: Application
    Filed: September 29, 2004
    Publication date: April 14, 2005
    Inventors: Shun Takeda, Takashi Shinoda, Takashi Kai
  • Patent number: 6463642
    Abstract: A method of manufacturing a vibration type driving apparatus comprising an elastic member which, in use, is excited with a vibration that sets a moving member into motion relative to the vibrating elastic member. The method includes providing a friction member on at least one of the elastic member and the moving member, and pressing the friction member between a mold and the at least one of the elastic member and the moving member forming a smooth contacting surface on the friction member.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: October 15, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Maruyama, Takashi Kai, Ichiro Chiba
  • Patent number: 6427519
    Abstract: Provided is a road surface friction coefficient measuring method and device for measuring the friction coefficient of road surfaces such as roads and runways, and which can be used by being mounted on a general car. This device has a spindle 5 detachably connected to the wheel of a travelling wheel 3 of a car, a support arm 6 oscillatably connected to the spindle, and a measuring wheel supported rotatably by the support arm.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: August 6, 2002
    Assignee: National Aerospace Laboratory of Science & Technology Agency
    Inventors: Tetsuhiko Ueda, Tokuo Sotozaki, Takashi Kai
  • Patent number: 6370330
    Abstract: An image shake detecting device for detecting a shake of an image on an image sensing plane on the basis of a video signal output from an image sensor includes detection circuits arranged to detect image displacement in a plurality of areas set on the image sensing plane, and a control microcomputer which makes a discrimination, on the basis of information output from these detection circuits, between a movement of a camera and a solo movement of a photographed object. The device thus accurately makes compensation for an image shake by judging the state of the image on the basis of information output from these detection circuits. The image shake detecting device further includes a computing circuit arranged to compute a quantity of an image shake on the basis of a difference in detecting timing of a feature point of the image and a sensitivity control circuit arranged to change the detection sensitivity of the shake detection circuits.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: April 9, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayoshi Sekine, Toshiyuki Nakajima, Takashi Kai, Katsuji Yoshimura, Masamichi Toyama
  • Publication number: 20010006002
    Abstract: Provided is a road surface friction coefficient measuring method and device for measuring the friction coefficient of road surfaces such as roads and runways, and which can be used by being mounted on a general car. This device has a spindle 5 detachably connected to the wheel of a travelling wheel 3 of a car, a support arm 6 oscillatably connected to the spindle, and a measuring wheel supported rotatably by the support arm.
    Type: Application
    Filed: December 20, 2000
    Publication date: July 5, 2001
    Applicant: National Aerospace Laboratory of Science & Technology Agency
    Inventors: Tetsuhiko Ueda, Tokuo Sotozaki, Takashi Kai