Patents by Inventor Hidemasa Mizutani
Hidemasa Mizutani 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).
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Patent number: 10464102Abstract: Provided is an ultrasonic detection device including: a capacitive electromechanical transducer including a cell that includes a first electrode and a second electrode disposed so as to oppose with a space; a voltage source for developing a potential difference between the first electrode and the second electrode; and an electric circuit for converting a current, which is caused by a change in electrostatic capacitance between the first electrode and the second electrode due to vibration of the second electrode, into a voltage, in which the capacitive electromechanical transducer provides an output current with a high-pass characteristic having a first cutoff frequency with respect to a frequency, the electric circuit provides an output with a low-pass characteristic having a second cutoff frequency with respect to the frequency, and the second cutoff frequency is smaller than the first cutoff frequency.Type: GrantFiled: November 17, 2015Date of Patent: November 5, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Takahiro Akiyama, Makoto Takagi, Kazunari Fujii, Hidemasa Mizutani
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Patent number: 9314820Abstract: Provided is an ultrasonic detection device including: a capacitive electromechanical transducer including a cell that includes a first electrode and a second electrode disposed so as to oppose with a space; a voltage source for developing a potential difference between the first electrode and the second electrode; and an electric circuit for converting a current, which is caused by a change in electrostatic capacitance between the first electrode and the second electrode due to vibration of the second electrode, into a voltage, in which the capacitive electromechanical transducer provides an output current with a high-pass characteristic having a first cutoff frequency with respect to a frequency, the electric circuit provides an output with a low-pass characteristic having a second cutoff frequency with respect to the frequency, and the second cutoff frequency is smaller than the first cutoff frequency.Type: GrantFiled: October 28, 2010Date of Patent: April 19, 2016Assignee: Canon Kabushiki KaishaInventors: Takahiro Akiyama, Makoto Takagi, Kazunari Fujii, Hidemasa Mizutani
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Publication number: 20160077058Abstract: Provided is an ultrasonic detection device including: a capacitive electromechanical transducer including a cell that includes a first electrode and a second electrode disposed so as to oppose with a space; a voltage source for developing a potential difference between the first electrode and the second electrode; and an electric circuit for converting a current, which is caused by a change in electrostatic capacitance between the first electrode and the second electrode due to vibration of the second electrode, into a voltage, in which the capacitive electromechanical transducer provides an output current with a high-pass characteristic having a first cutoff frequency with respect to a frequency, the electric circuit provides an output with a low-pass characteristic having a second cutoff frequency with respect to the frequency, and the second cutoff frequency is smaller than the first cutoff frequency.Type: ApplicationFiled: November 17, 2015Publication date: March 17, 2016Inventors: Takahiro Akiyama, Makoto Takagi, Kazunari Fujii, Hidemasa Mizutani
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Publication number: 20120163124Abstract: Provided is an ultrasonic detection device including: a capacitive electromechanical transducer including a cell that includes a first electrode and a second electrode disposed so as to oppose with a space; a voltage source for developing a potential difference between the first electrode and the second electrode; and an electric circuit for converting a current, which is caused by a change in electrostatic capacitance between the first electrode and the second electrode due to vibration of the second electrode, into a voltage, in which the capacitive electromechanical transducer provides an output current with a high-pass characteristic having a first cutoff frequency with respect to a frequency, the electric circuit provides an output with a low-pass characteristic having a second cutoff frequency with respect to the frequency, and the second cutoff frequency is smaller than the first cutoff frequency.Type: ApplicationFiled: October 28, 2010Publication date: June 28, 2012Applicant: CANON KABUSHIKI KAISHAInventors: Takahiro Akiyama, Makoto Takagi, Kazunari Fujii, Hidemasa Mizutani
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Publication number: 20110198966Abstract: A capacitive electromechanical transducer has at least one cell. The cell includes a first electrode, a movable vibrating portion including a second electrode disposed opposite the first electrode with a space therebetween, and a supporting portion that supports the vibrating portion. In order to regulate the strength of a border portion between the vibrating portion and the supporting portion, a strength regulating portion is provided.Type: ApplicationFiled: February 11, 2011Publication date: August 18, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Kazunari Fujii, Takahiro Akiyama, Hidemasa Mizutani
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Patent number: 7868544Abstract: Provided is a display apparatus capable of reducing external light reflection to reduce an amount of glare of the outside, in which a translucent protection member is provided to cover an observation surface side of a display member including an organic EL light-emitting portion, in order to protect the display member. The display apparatus includes the display member with an organic EL light-emitting portion having a pair of electrodes and an organic compound layer provided between the pair of electrodes; and a casing for housing the display member, wherein a protection member is provided in the casing with a gap from the display member, and wherein a phase member and a polarizing member are formed on the protection member such that the polarizing member is located closer to a light extraction side than the phase member.Type: GrantFiled: April 16, 2009Date of Patent: January 11, 2011Assignee: Canon Kabushiki KaishaInventors: Ryuichiro Isobe, Hideo Mori, Osamu Yuuki, Tatsuyuki Tokunaga, Hidemasa Mizutani
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Publication number: 20090200934Abstract: Provided is a display apparatus capable of reducing external light reflection to reduce an amount of glare of the outside, in which a translucent protection member is provided to cover an observation surface side of a display member including an organic EL light-emitting portion, in order to protect the display member. The display apparatus includes the display member with an organic EL light-emitting portion having a pair of electrodes and an organic compound layer provided between the pair of electrodes; and a casing for housing the display member, wherein a protection member is provided in the casing with a gap from the display member, and wherein a phase member and a polarizing member are formed on the protection member such that the polarizing member is located closer to a light extraction side than the phase member.Type: ApplicationFiled: April 16, 2009Publication date: August 13, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Ryuichiro Isobe, Hideo Mori, Osamu Yuuki, Tatsuyuki Tokunaga, Hidemasa Mizutani
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Patent number: 7541739Abstract: Provided is a display apparatus capable of reducing external light reflection to reduce an amount of glare of the outside, in which a translucent protection member is provided to cover an observation surface side of a display member including an organic EL light-emitting portion, in order to protect the display member. The display apparatus includes the display member with an organic EL light-emitting portion having a pair of electrodes and an organic compound layer provided between the pair of electrodes; and a casing for housing the display member, wherein a protection member is provided in the casing with a gap from the display member, and wherein a phase member and a polarizing member are formed on the protection member such that the polarizing member is located closer to a light extraction side than the phase member.Type: GrantFiled: October 20, 2006Date of Patent: June 2, 2009Assignee: Canon Kabushiki KaishaInventors: Ryuichiro Isobe, Hideo Mori, Osamu Yuuki, Tatsuyuki Tokunaga, Hidemasa Mizutani
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Patent number: 7534506Abstract: A luminescence device comprising a pair of electrodes and an organic compound layer disposed between the electrodes. The layer contains a metal coordination compound represented by the following formula (1): wherein M is Ir, Rh or Pd;n is 2or 3; and X1 to X8 is, independently, a hydrogen atom or a substituent selected from the group consisting of a halogen atom; a nitro group; a trifluoromethyl group; a trialkylsilyl group having three linear or branched alkyl groups each independently having 1-8 carbon atoms; and a linear or branched alkyl group having 2-20 carbon atoms capable of including one or at least two non-neighboring methylene groups which can be replaced with —O—,—S—,—C(O)—,—C(O)—O—,—O—C(O)—, —CH?CH—or —C?C—and capable of including a hydrogen atom which can be replaced with a fluorine atom.Type: GrantFiled: September 15, 2005Date of Patent: May 19, 2009Assignee: Canon Kabushiki KaishaInventors: Takao Takiguchi, Hidemasa Mizutani, Shinjiro Okada, Akira Tsuboyama, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Manabu Furugori
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Patent number: 7508127Abstract: A multicolor light-emitting device includes a plurality of organic EL devices each having two or more different luminescent colors. The multicolor light-emitting device includes a plurality of organic EL devices each having an organic compound layer including a light-emitting layer 12 between a reflecting electrode 11 and a transparent electrode 14. The plurality of organic EL devices each has two or more different emission spectra, wherein light-emitting regions in the light-emitting layer of the organic EL devices each having different emission spectra are located in different positions in the layer thickness direction corresponding to the different emission spectra.Type: GrantFiled: October 6, 2003Date of Patent: March 24, 2009Assignee: Canon Kabushiki KaishaInventors: Seishi Miura, Hidemasa Mizutani, Shigeki Kondo, Masahiro Fushimi, Takashi Moriyama
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Patent number: 7362488Abstract: The tiltable-body apparatus including a frame member, a tiltable body, and a pair of torsion springs having a twisting longitudinal axis. The torsion springs are disposed along the twisting longitudinal axis opposingly with the tiltable body being interposed, support the tiltable body flexibly and rotatably about the twisting longitudinal axis relative to the frame member, and include a plurality of planar portions, compliant directions of which intersect each other when viewed along a direction of the twisting longitudinal axis. A center of gravity of the tiltable body is positioned on the twisting longitudinal axis of the torsion springs.Type: GrantFiled: March 13, 2007Date of Patent: April 22, 2008Assignee: Canon Kabushiki KaishaInventors: Susumu Yasuda, Hidemasa Mizutani, Takayuki Yagi, Yasuhiro Shimada, Futoshi Hirose, Takahisa Kato
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Patent number: 7321194Abstract: In a display device having a display region formed by disposing a plurality of organic light emitting elements such as organic EL elements, it becomes possible to prevent penetration of water into the display region to suppress degradation in display characteristics even during drive over a long period of time and to improve long-term reliability. There is provided a display device comprising a display region (120) having a plurality of organic light emitting elements disposed on a substrate (101), each of the plurality of organic light emitting elements having an organic layer (103 comprising a light emitting layer interposed between an anode and a cathode (102, 104), wherein the display region (120) is formed on a first insulating protective layer (106) provided on the substrate (101), and a surface on a side opposite to a substrate (101) side and an entire periphery of the display region (120) are covered with an insulating protective film (107).Type: GrantFiled: October 9, 2003Date of Patent: January 22, 2008Assignee: Canon Kabushiki KaishaInventors: Shigeki Kondo, Hidemasa Mizutani, Masahiro Fushimi, Seishi Miura, Takashi Moriyama
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Publication number: 20070242328Abstract: The tiltable-body apparatus including a frame member, a tiltable body, and a pair of torsion springs having a twisting longitudinal axis. The torsion springs are disposed along the twisting longitudinal axis opposingly with the tiltable body being interposed, support the tiltable body flexibly and rotatably about the twisting longitudinal axis relative to the frame member, and include a plurality of planar portions, compliant directions of which intersect each other when viewed along a direction of the twisting longitudinal axis. A center of gravity of the tiltable body is positioned on the twisting longitudinal axis of the torsion springs.Type: ApplicationFiled: March 13, 2007Publication date: October 18, 2007Applicant: Canon Kabushiki KaishaInventors: Susumu Yasuda, Hidemasa Mizutani, Takayuki Yagi, Yasuhiro Shimada, Futoshi Hirose, Takahisa Kato
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Patent number: 7277214Abstract: The tiltable-body apparatus including a frame member, a tiltable body, and a pair of torsion springs having a twisting longitudinal axis. The torsion springs are disposed along the twisting longitudinal axis opposingly with the tiltable body being interposed, support the tiltable body flexibly and rotatably about the twisting longitudinal axis relative to the frame member, and include a plurality of planar portions, compliant directions of which intersect each other when viewed along a direction of the twisting longitudinal axis. A center of gravity of the tiltable body is positioned on the twisting longitudinal axis of the torsion springs.Type: GrantFiled: May 26, 2006Date of Patent: October 2, 2007Assignee: Canon Kabushiki KaishaInventors: Susumu Yasuda, Hidemasa Mizutani, Takayuki Yagi, Yasuhiro Shimada, Futoshi Hirose, Takahisa Kato
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Publication number: 20070133189Abstract: Provided is a display apparatus capable of reducing external light reflection to reduce an amount of glare of the outside, in which a translucent protection member is provided to cover an observation surface side of a display member including an organic EL light-emitting portion, in order to protect the display member. The display apparatus includes the display member with an organic EL light-emitting portion having a pair of electrodes and an organic compound layer provided between the pair of electrodes; and a casing for housing the display member, wherein a protection member is provided in the casing with a gap from the display member, and wherein a phase member and a polarizing member are formed on the protection member such that the polarizing member is located closer to a light extraction side than the phase member.Type: ApplicationFiled: October 20, 2006Publication date: June 14, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Ryuichiro Isobe, Hideo Mori, Osamu Yuuki, Tatsuyuki Tokunaga, Hidemasa Mizutani
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Patent number: 7220495Abstract: A luminescence device that has an organic compound layer disposed between a pair of electrodes. This organic compound layer contains a metal coordination compound represented by the following formula (1): wherein M is Ir, Rh or Pd; n is 2 or 3; CyN is a substituted or unsubstituted cyclic group containing a nitrogen atom connected to M and capable of containing another nitrogen atom and/or a sulfur atom; and CyC is a substituted or unsubstituted cyclic group containing a carbon atom connected to M and capable of containing a nitrogen atom and/or a sulfur atom.Type: GrantFiled: August 20, 2004Date of Patent: May 22, 2007Assignee: Canon Kabushiki KaishaInventors: Akira Tsuboyama, Hidemasa Mizutani, Shinjiro Okada, Takao Takiguchi, Seishi Miura, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Manabu Furugori
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Patent number: 7205054Abstract: An organic EL device includes a luminescence layer containing a metal coordination compound represented by the following formula (1): LmML?n, wherein M denotes Ir, Pt, Rh or Pd; L denotes a bidentate ligand; L? denotes a bidentate ligand different from L; m is an integer of 1, 2 or 3; and n is an integer of 0, 1 or 2 with the proviso that the sum of m and n is 2 or 3. The partial structure MLm is represented by formula (2) or formula (3) shown below, and the partial structure ML?n is represented by formula (4) or formula (5) shown below: wherein CyN1, CyN2 and CyN3 independently denote a substituted or unsubstituted cyclic group containing a nitrogen atom connected to M; CyN4 denotes a cyclic group containing 8-quinoline or its derivative having a nitrogen atom connected to M.Type: GrantFiled: August 1, 2005Date of Patent: April 17, 2007Assignee: Canon Kabushiki KaishaInventors: Akira Tsuboyama, Hidemasa Mizutani, Shinjiro Okada, Takao Takuguchi, Seishi Miura, Koji Noguchi, Takashi Moriyama, Satoshi Igawa, Jun Kamatani, Manabu Furugori
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Patent number: 7173747Abstract: The tiltable-body apparatus including a frame member, a tiltable body, and a pair of torsion springs having a twisting longitudinal axis. The torsion springs are disposed along the twisting longitudinal-axis opposingly with the tiltable body being interposed, support the tiltable body flexibly and rotatably about the twisting longitudinal axis relative to the frame member, and include a plurality of planar portions, compliant directions of which intersect each other when viewed along a direction of the twisting longitudinal axis. A center of gravity of the tiltable body is positioned on the twisting longitudinal axis of the torsion springs.Type: GrantFiled: September 28, 2004Date of Patent: February 6, 2007Assignee: Canon Kabushiki KaishiInventors: Susumu Yasuda, Hidemasa Mizutani, Takayuki Yagi, Yasuhiro Shimada, Futoshi Hirose, Takahisa Kato
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Patent number: RE39780Abstract: A photoelectric converter of a high signal-to-noise ratio, low cost, high productivity and stable characteristics and a system including the above photoelectric converter. The photoelectric converter includes a photoelectric converting portion in which a first electrode layer, an insulating layer for inhibiting carriers from transferring, a photoelectric converting semiconductor layer of a non-single-crystal type, an injection blocking layer for inhibiting a first type of carriers from being injected into the semiconductor layer and a second electrode layer are laminated in this order on an insulating substrate.Type: GrantFiled: June 13, 2002Date of Patent: August 21, 2007Assignee: Canon Kabushiki KaishaInventors: Noriyuki Kaifu, Hidemasa Mizutani, Shinichi Takeda, Isao Kobayashi, Satoshi Itabashi
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Patent number: RE42157Abstract: A photoelectric converter of a high signal-to-noise ratio, low cost, high productivity and stable characteristics and a system including the above photoelectric converter. The photoelectric converter includes a photoelectric converting portion in which a first electrode layer, an insulating layer for inhibiting carriers from transferring, a photoelectric converting semiconductor layer of a non-single-crystal type, an injection blocking layer for inhibiting a first type of carriers from being injected into the semiconductor layer and a second electrode layer are laminated in this order on an insulating substrate.Type: GrantFiled: February 26, 2008Date of Patent: February 22, 2011Assignee: Canon Kabushiki KaishaInventors: Noriyuki Kaifu, Hidemasa Mizutani, Shinichi Takeda, Isao Kobayashi, Satoshi Itabashi