Patents by Inventor Masaki Tokioka

Masaki Tokioka 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: 10893188
    Abstract: An imaging apparatus includes an imaging device that photoelectrically converts an optical image obtained through a focus lens. The focus lens is moved to a focus position set by focus detection performed based on image signals from the imaging device with a first aperture value. A first correction amount of the set focus position is acquired according to a difference between the first aperture value and a second aperture value to be used at a time of photographing. Photographing is executed at a determined focus position at the time of photographing, by a user's operation. If the first correction amount is larger than a predetermined amount, a focus position corrected according to the first correction amount is determined as the focus position at the time of photographing, and if not, the set focus position is determined as the focus position at the time of photographing.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: January 12, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaki Tokioka, Hiromi Kotoku, Hidetoshi Abe, Takeshi Omata, Kenya Fukabori, Naoki Iwasaki, Hiroaki Kurisu
  • Publication number: 20190238756
    Abstract: An imaging apparatus includes an imaging device that photoelectrically converts an optical image obtained through a focus lens. The focus lens is moved to a focus position set by focus detection performed based on image signals from the imaging device with a first aperture value. A first correction amount of the set focus position is acquired according to a difference between the first aperture value and a second aperture value to be used at a time of photographing. Photographing is executed at a determined focus position at the time of photographing, by a user's operation. If the first correction amount is larger than a predetermined amount, a focus position corrected according to the first correction amount is determined as the focus position at the time of photographing, and if not, the set focus position is determined as the focus position at the time of photographing.
    Type: Application
    Filed: January 25, 2019
    Publication date: August 1, 2019
    Inventors: Masaki Tokioka, Hiromi Kotoku, Hidetoshi Abe, Takeshi Omata, Kenya Fukabori, Naoki Iwasaki, Hiroaki Kurisu
  • Patent number: 8018132
    Abstract: A bonding method using a bonding agent is provided, which has the steps of forming an underlayer on a first member, providing a bonding agent on the underlayer, forming a contact member, different from the bonding agent, on a second member, bringing the bonding agent into contact with the contact member so that the first member and the second member are bonded to each other. In the method described above, the wettability of the bonding agent to the underlayer is superior to that of the bonding agent to a surface of the first member before the underlayer is formed thereon, and the bondability of the bonding agent to the contact member is superior to that of the bonding agent to a surface of the second member before the contact member is formed thereon.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: September 13, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Masaki Tokioka, Tokutaka Miura
  • Publication number: 20110050087
    Abstract: A bonding method using a bonding agent is provided, which has the steps of forming an underlayer on a first member, providing a bonding agent on the underlayer, forming a contact member, different from the bonding agent, on a second member, bringing the bonding agent into contact with the contact member so that the first member and the second member are bonded to each other. In the method described above, the wettability of the bonding agent to the underlayer is superior to that of the bonding agent to a surface of the first member before the underlayer is formed thereon, and the bondability of the bonding agent to the contact member is superior to that of the bonding agent to a surface of the second member before the contact member is formed thereon.
    Type: Application
    Filed: November 10, 2010
    Publication date: March 3, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Mitsutoshi Hasegawa, Masaki Tokioka, Tokutaka Miura
  • Patent number: 7888854
    Abstract: A bonding method using a bonding agent is provided, which has the steps of forming an underlayer on a first member, providing a bonding agent on the underlayer, forming a contact member, different from the bonding agent, on a second member, bringing the bonding agent into contact with the contact member so that the first member and the second member are bonded to each other. In the method described above, the wettability of the bonding agent to the underlayer is superior to that of the bonding agent to a surface of the first member before the underlayer is formed thereon, and the bondability of the bonding agent to the contact member is superior to that of the bonding agent to a surface of the second member before the contact member is formed thereon.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: February 15, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Masaki Tokioka, Tokutaka Miura
  • Patent number: 7559819
    Abstract: A joining material like an In film having a low melting point forms a surface oxide film when melted. If the oxide film is thick, an uneven surface shape will remain as it is, and can cause vacuum leakage during vacuum sealing. This problem is solved, for example, by placing particles of a refractory material inside the low melting joining material. The particles of the refractory material serve as a holding member for the low melting material and break the oxide film during a joining operation to bring the seal bonding with the low melting material to perfection.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: July 14, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Tokioka, Hiroharu Ueda, Mitsutoshi Hasegawa, Tokutaka Miura
  • Patent number: 7500897
    Abstract: In an image display device having in an airtight container an electron source and an image display member that receives electrons from the electron source, an evaporating getter and a non-evaporating getter are stacked in the airtight container. This makes it possible to maintain the vacuum level in the airtight container. The image display device thus obtains a prolonged life and a stable display operation.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: March 10, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Ihachiro Gofuku, Masaki Tokioka, Kazuya Shigeoka, Tokutaka Miura
  • Patent number: 7368866
    Abstract: Provided is an envelope which includes: a first substrate; a second substrate opposed to the first substrate; a frame interposed between the first substrate and the second substrate; and a low melting point metal for bonding the first substrate and the frame to each other. In particular, in such a configuration, the substrate or the frame has a first region and a second region which are brought into contact with the low melting point metal, and in the first region, a material capable of higher maintaining airtightness with the low melting point metal than the second region is in contact with the low melting point metal, while in the second region, a material having a stronger binding power on the low melting point metal than the first region is in contact with the low melting point metal.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: May 6, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Masaki Tokioka, Tokutaka Miura
  • Patent number: 7326095
    Abstract: In a recycling method for an image display apparatus including a vacuum container structured by sealing a front panel having a phosphor and a rear panel having an electron emitter for irradiating electrons onto the phosphor, the rear panel is separated from the vacuum container, the electron emitter on the rear panel is recovered, and then the rear panel is sealed again to thereby reconstruct the vacuum container.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: February 5, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tokutaka Miura, Mitsutoshi Hasegawa, Masaki Tokioka, Kazuya Shigeoka
  • Publication number: 20070069646
    Abstract: In an image display device having in an airtight container an electron source and an image display member that receives electrons from the electron source, an evaporating getter and a non-evaporating getter are stacked in the airtight container. This makes it possible to maintain the vacuum level in the airtight container. The image display device thus obtains a prolonged life and a stable display operation.
    Type: Application
    Filed: June 27, 2006
    Publication date: March 29, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Mitsutoshi Hasegawa, Ihachiro Gofuku, Masaki Tokioka, Kazuya Shigeoka, Tokutaka Miura
  • Publication number: 20070045386
    Abstract: A bonding method using a bonding agent is provided, which has the steps of forming an underlayer on a first member, providing a bonding agent on the underlayer, forming a contact member, different from the bonding agent, on a second member, bringing the bonding agent into contact with the contact member so that the first member and the second member are bonded to each other. In the method described above, the wettability of the bonding agent to the underlayer is superior to that of the bonding agent to a surface of the first member before the underlayer is formed thereon, and the bondability of the bonding agent to the contact member is superior to that of the bonding agent to a surface of the second member before the contact member is formed thereon.
    Type: Application
    Filed: October 24, 2006
    Publication date: March 1, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: MITSUTOSHI HASEGAWA, Masaki Tokioka, Tokutaka Miura
  • Patent number: 7143927
    Abstract: A bonding method using a bonding agent is provided, which has the steps of forming an underlayer on a first member, providing a bonding agent on the underlayer, forming a contact member, different from the bonding agent, on a second member, bringing the bonding agent into contact with the contact member so that the first member and the second member are bonded to each other. In the method described above, the wettability of the bonding agent to the underlayer is superior to that of the bonding agent to a surface of the first member before the underlayer is formed thereon, and the bondability of the bonding agent to the contact member is superior to that of the bonding agent to a surface of the second member before the contact member is formed thereon.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: December 5, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Masaki Tokioka, Tokutaka Miura
  • Patent number: 7119482
    Abstract: A joining material like an In film having a low melting point forms a surface oxide film when melted. If the oxide film is thick, an uneven surface shape will remain as it is, and can cause vacuum leakage during vacuum sealing. This problem is solved, for example, by placing particles of a refractory material inside the low melting joining material. The particles of the refractory material serve as a holding member for the low melting material and break the oxide film during a joining operation to bring the seal bonding with the low melting material to perfection.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: October 10, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Tokioka, Hiroharu Ueda, Mitsutoshi Hasegawa, Tokutaka Miura
  • Publication number: 20060194501
    Abstract: A joining material like an In film having a low melting point forms a surface oxide film when melted. If the oxide film is thick, an uneven surface shape will remain as it is, and can cause vacuum leakage during vacuum sealing. This problem is solved, for example, by placing particles of a refractory material inside the low melting joining material. The particles of the refractory material serve as a holding member for the low melting material and break the oxide film during a joining operation to bring the seal bonding with the low melting material to perfection.
    Type: Application
    Filed: May 1, 2006
    Publication date: August 31, 2006
    Inventors: Masaki Tokioka, Hiroharu Ueda, Mitsutoshi Hasegawa, Tokutaka Miura
  • Patent number: 7091662
    Abstract: In an image display device having in an airtight container an electron source and an image display member that receives electrons from the electron source, an evaporating getter and a non-evaporating getter are stacked in the airtight container. This makes it possible to maintain the vacuum level in the airtight container. The image display device thus obtains a prolonged life and a stable display operation.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: August 15, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Ihachiro Gofuku, Masaki Tokioka, Kazuya Shigeoka, Tokutaka Miura
  • Publication number: 20060135027
    Abstract: In a recycling method for an image display apparatus including a vacuum container structured by sealing a front panel having a phosphor and a rear panel having an electron emitter for irradiating electrons onto the phosphor, the rear panel is separated from the vacuum container, the electron emitter on the rear panel is recovered, and then the rear panel is sealed again to thereby reconstruct the vacuum container.
    Type: Application
    Filed: November 21, 2005
    Publication date: June 22, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tokutaka Miura, Mitsutoshi Hasegawa, Masaki Tokioka, Kazuya Shigeoka
  • Patent number: 6988921
    Abstract: In a recycling method for an image display apparatus including a vacuum container structured by sealing a front panel having a phosphor and a rear panel having an electron emitter for irradiating electrons onto the phosphor, the rear panel is separated from the vacuum container, the electron emitter on the rear panel is recovered, and then the rear panel is sealed again to thereby reconstruct the vacuum container.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: January 24, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tokutaka Miura, Mitsutoshi Hasegawa, Masaki Tokioka, Kazuya Shigeoka
  • Publication number: 20050103435
    Abstract: The present application discloses a method of manufacturing airtight vessels having a step of arranging a first substrate and a second substrate opposite to each other in a standing state, and a step of bonding to one of the first substrate and the second substrate a frame for forming an airtight vessel together with the first substrate and the second substrate, wherein, at the bonding step, a seal bonding member airtightly bonded to the frame and with one of the substrates is formed by, after successively supplying a sealing material heated to a temperature not lower than the temperature at which the bonding is possible in a state in which the first substrate and the second substrate are arranged opposite each other, solidifying after that the sealing material to form a seal bonding member.
    Type: Application
    Filed: October 21, 2004
    Publication date: May 19, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masaki Tokioka, Mitsutoshi Hasegawa, Kazuo Koyanagi, Tokutaka Miura, Hiroharu Ueda
  • Patent number: 6784613
    Abstract: A non-evaporating getter maintains the adsorbability for the residual gases, and in addition, secures sufficient characteristics particularly even when it experiences a high-temperature and low-vacuum condition in the fabrication process of a display unit. The non-evaporating getter includes a substrate having no function as a getter and a polycrystalline film arranged on the substrate which film contains Ti as the main component and has a host of voids in the interior thereof. A non-evaporating getter is made by forming a polycrystalline film containing Ti as the main component on the concavo-convex surface of the substrate which substrate has concavities and convexities on a surface thereof and has no function as a getter.
    Type: Grant
    Filed: August 16, 2002
    Date of Patent: August 31, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Tokioka, Mitsutoshi Hasegawa, Kazuya Shigeoka, Yutaka Arai
  • Publication number: 20040135505
    Abstract: In an image display device having in an airtight container an electron source and an image display member that receives electrons from the electron source, an evaporating getter and a non-evaporating getter are stacked in the airtight container. This makes it possible to maintain the vacuum level in the airtight container. The image display device thus obtains a prolonged life and a stable display operation.
    Type: Application
    Filed: July 23, 2003
    Publication date: July 15, 2004
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Mitsutoshi Hasegawa, Ihachiro Gofuku, Masaki Tokioka, Kazuya Shigeoka, Tokutaka Miura