Patents by Inventor Toshiyasu Tanaka
Toshiyasu Tanaka 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: 11324097Abstract: An illumination control method includes: causing an illumination apparatus to illuminate a predetermined space with light; and controlling at least one of a color temperature of light which the illumination apparatus emits and an illuminance of the light which the illumination apparatus emits in the predetermined space, to cause an integrated value to be at least 10 ?W·h/cm2. The integrated value is a value resulting from integrating time and an effective amount of melatonin during a first time frame from 5:00 to 14:00.Type: GrantFiled: September 20, 2019Date of Patent: May 3, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Saori Ueno, Yu Kawase, Toshiyasu Tanaka
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Publication number: 20200107420Abstract: An illumination control method includes: causing an illumination apparatus to illuminate a predetermined space with light; and controlling at least one of a color temperature of light which the illumination apparatus emits and an illuminance of the light which the illumination apparatus emits in the predetermined space, to cause an integrated value to be at least 10 ?W·h/cm2. The integrated value is a value resulting from integrating time and an effective amount of melatonin during a first time frame from 5:00 to 14:00.Type: ApplicationFiled: September 20, 2019Publication date: April 2, 2020Inventors: Saori UENO, Yu KAWASE, Toshiyasu TANAKA
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Patent number: 10094622Abstract: A method for forming a crystal nucleus in a latent heat storage material contains a solvent and a dissolved substance. The solvent contains water as the main ingredient. The latent heat storage material retains latent heat in a supercooled state. The method includes: (a) separating out an anhydride of the dissolved substance by heating or cooling part of the latent heat storage material in the supercooled state; and (b) supplying a droplet comprising water to the anhydride, to terminate the supercooled state of the latent heat storage material, and make the latent heat storage material dissipate heat.Type: GrantFiled: May 14, 2015Date of Patent: October 9, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Renji Honda, Shigenori Maeda, Toyoji Gushima, Hironori Tomita, Toshiyasu Tanaka
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Patent number: 9554330Abstract: A wireless communication device 81 operates in either a ROD mode or a non-ROD mode. The non-ROD mode sets the state of the device to an active state that the device can perform wireless communication compliant with a first communication scheme with a communication destination device 82. The ROD mode: sets the state of the device to either the active state or a sleep state that the device can receive an activation instruction signal compliant with a second communication scheme requiring smaller electric power to receive a signal than the first communication scheme and cannot perform wireless communication compliant with the first communication scheme with the communication destination device; sets the state of the device to the sleep state when a predetermined sleep condition is satisfied; and sets the state of the device to the active state when the device receives the activation instruction signal.Type: GrantFiled: November 16, 2012Date of Patent: January 24, 2017Assignee: NEC Communication Systems, Ltd.Inventors: Stefan Aust, Toshiyasu Tanaka, Tetsuya Ito
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Publication number: 20170013556Abstract: In order to solve a problem that, when a plurality of wireless communication modes are simultaneously used, interference between the plurality of wireless communication modes cannot be effectively prevented, a wireless communication control device according to the present invention includes a first communication mode control unit performing wireless communication in a first wireless communication mode, and a second communication mode control unit performing wireless communication in a second wireless communication mode. The second communication mode control unit detects a start of wireless communication in the first wireless communication mode, operates not to perform wireless communication in the second wireless communication mode during a wireless communication period in the first wireless communication mode, and operates to perform wireless communication in the second wireless communication mode outside a wireless communication period in the first wireless communication mode.Type: ApplicationFiled: February 23, 2015Publication date: January 12, 2017Applicant: NEC Communication Systems, LtdInventors: Toshiyasu TANAKA, Stefan AUST
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Patent number: 9484054Abstract: An optical disc information device is an optical disc information device for reproducing and/or recording information with respect to an optical disc including a track in the form of a groove, and capable of recording information in a land portion and in a groove portion of the groove. The optical disc information device includes a laser light source, an objective lens, a transmittance limiting element, a dividing element, a light detector, a central amplifier, at least two end amplifiers, a gain controller, an adder, a reproduction signal processor, and a control signal processor. The transmittance limiting element includes a first central region, and at least two first end regions which interpose the first central region therebetween, and attenuates light passing through at least the first end regions out of a light flux emitted from the laser light source more strongly than light passing through the first central region.Type: GrantFiled: September 9, 2015Date of Patent: November 1, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kanji Wakabayashi, Kousei Sano, Fumitomo Yamasaki, Yoshiaki Komma, Toshiyasu Tanaka
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Patent number: 9461772Abstract: A packet interval (a time difference between sequentially received packets) in a certain previous time is calculated and a cumulative distribution function of the calculated packet interval is obtained. Meanwhile, a function value-corresponding to-flow end that is a boundary value of the cumulative distribution function to be considered as a flow end (timeout) in the range of a cumulative distribution function value is stored. From the cumulative distribution function obtained as described above, a value of a packet interval mapped to a cumulative distribution function value that matches the function value-corresponding to-flow end is set as a threshold. That is, the threshold is dynamically set based on a previous packet interval. Therefore, a packet stop period from a last packet reception time to a current time is measured, and it is detected as a flow timeout at a timing when the measured value is equal to or greater than the threshold.Type: GrantFiled: July 24, 2012Date of Patent: October 4, 2016Assignee: NEC Communication Systems, Ltd.Inventors: Hiroyuki Iizuka, Toshiyasu Tanaka, Koichi Yoshimura, Masahito Iwai, Tetsuya Ito
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Patent number: 9418695Abstract: An RF hologram is divided in a direction perpendicular to a tangent line of an information track of an information recording surface of an optical disc, and includes a central region including an optical axis of laser light as well as a first end portion region and a second end portion region which sandwich the central region, the central region is formed by a binary diffraction grating and generates ±1 order diffracted light, the first end portion region is formed by a blazed diffraction grating and generates first +1 order diffracted light, the second end portion region is formed by a blazed diffraction grating and generates second +1 order diffracted light, and an RF light receiving element receives both the ±1 order diffracted light, the first +1 order diffracted light, and the second +1 order diffracted light.Type: GrantFiled: December 16, 2015Date of Patent: August 16, 2016Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Fumitomo Yamasaki, Kousei Sano, Yoshiaki Komma, Kanji Wakabayashi, Toshiyasu Tanaka
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Patent number: 9374784Abstract: A terminal device 2 transmits a wireless frame having a frame length or amplitude that represents the ID of a wireless base station 1 to be woken up to the wireless base station 1. The wireless base station 1 detects the wakeup ID from the frame length or amplitude of the wireless frame from the terminal device 2, and, if the detected wakeup ID is identical with its own ID, transitions from a sleep mode to an operating mode. In this case, the wireless frame is the same wireless frame as that transmitted and received by the wireless communication module of the terminal device 2 to and from the wireless base station 1.Type: GrantFiled: February 16, 2012Date of Patent: June 21, 2016Assignees: ADVANCED TELECOMMUNICATIONS RESEARCH INSTITUTE INTERNATIONAL, NEC COMMUNICATION SYSTEMS, LTD.Inventors: Yoshihisa Kondo, Hiroyuki Yomo, Suhua Tang, Sadao Obana, Tetsuya Ito, Koichi Yoshimura, Masahito Iwai, Toshiyasu Tanaka, Hiroyuki Iizuka
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Publication number: 20160104505Abstract: An RF hologram is divided in a direction perpendicular to a tangent line of an information track of an information recording surface of an optical disc, and includes a central region including an optical axis of laser light as well as a first end portion region and a second end portion region which sandwich the central region, the central region is formed by a binary diffraction grating and generates ±1 order diffracted light, the first end portion region is formed by a blazed diffraction grating and generates first +1 order diffracted light, the second end portion region is formed by a blazed diffraction grating and generates second +1 order diffracted light, and an RF light receiving element receives both the ±1 order diffracted light, the first +1 order diffracted light, and the second +1 order diffracted light.Type: ApplicationFiled: December 16, 2015Publication date: April 14, 2016Inventors: Fumitomo YAMASAKI, Kousei SANO, Yoshiaki KOMMA, Kanji WAKABAYASHI, Toshiyasu TANAKA
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Publication number: 20150380041Abstract: An optical disc information device is an optical disc information device for reproducing and/or recording information with respect to an optical disc including a track in the form of a groove, and capable of recording information in a land portion and in a groove portion of the groove. The optical disc information device includes a laser light source, an objective lens, a transmittance limiting element, a dividing element, a light detector, a central amplifier, at least two end amplifiers, a gain controller, an adder, a reproduction signal processor, and a control signal processor. The transmittance limiting element includes a first central region, and at least two first end regions which interpose the first central region therebetween, and attenuates light passing through at least the first end regions out of a light flux emitted from the laser light source more strongly than light passing through the first central region.Type: ApplicationFiled: September 9, 2015Publication date: December 31, 2015Inventors: Kanji WAKABAYASHI, Kousei SANO, Fumitomo YAMASAKI, Yoshiaki KOMMA, Toshiyasu TANAKA
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Publication number: 20150345874Abstract: A method for forming a crystal nucleus in a latent heat storage material contains a solvent and a dissolved substance. The solvent contains water as the main ingredient. The latent heat storage material retains latent heat in a supercooled state. The method includes: (a) separating out an anhydride of the dissolved substance by heating or cooling part of the latent heat storage material in the supercooled state; and (b) supplying a droplet comprising water to the anhydride, to terminate the supercooled state of the latent heat storage material, and make the latent heat storage material dissipate heat.Type: ApplicationFiled: May 14, 2015Publication date: December 3, 2015Inventors: RENJI HONDA, SHIGENORI MAEDA, TOYOJI GUSHIMA, HIRONORI TOMITA, TOSHIYASU TANAKA
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Publication number: 20150241136Abstract: A heat storage device includes a pair of electrodes; an alternating-current power source that applies an alternating-current voltage to the pair of electrodes; and a latent heat storage material that is disposed between the pair of electrodes, a supercooled state of the latent heat storage material being maintained by the alternating-current voltage.Type: ApplicationFiled: February 5, 2015Publication date: August 27, 2015Inventors: SHIGENORI MAEDA, TOYOJI GUSHIMA, TOSHIYASU TANAKA, HIRONORI TOMITA, RENJI HONDA
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Publication number: 20140313963Abstract: A wireless communication device 81 operates in either a ROD mode or a non-ROD mode. The non-ROD mode sets the state of the device to an active state that the device can perform wireless communication compliant with a first communication scheme with a communication destination device 82. The ROD mode: sets the state of the device to either the active state or a sleep state that the device can receive an activation instruction signal compliant with a second communication scheme requiring smaller electric power to receive a signal than the first communication scheme and cannot perform wireless communication compliant with the first communication scheme with the communication destination device; sets the state of the device to the sleep state when a predetermined sleep condition is satisfied; and sets the state of the device to the active state when the device receives the activation instruction signal.Type: ApplicationFiled: November 16, 2012Publication date: October 23, 2014Inventors: Stefan Aust, Toshiyasu Tanaka, Tetsuya Ito
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Patent number: 8848501Abstract: The present application discloses detection lens provided with lens portion and flange portion including first surface connected to lens portion and second surface opposite to first surface. Flange portion includes base along optical axis of lens portion, and first to fourth projections projecting from base. First and second projections are point-symmetric around optical axis. Third and fourth projections are point-symmetric around optical axis. Flange portion excludes projection extending beyond second surface. First projection includes first intersecting surface which intersects with first axis. Second projection includes second intersecting surface which intersects with first axis. Third projection includes third intersecting surface which intersects with second axis. Fourth projection includes fourth intersecting surface which intersects with second axis. First distance between first and second intersecting surfaces is longer than second distance between third and fourth intersecting surfaces.Type: GrantFiled: December 20, 2012Date of Patent: September 30, 2014Assignee: Panasonic CorporationInventors: Toshiyasu Tanaka, Noriaki Terahara, Takeshi Ohta, Shinsuke Hatanaka, Fumitomo Yamasaki
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Publication number: 20140226758Abstract: A packet interval (a time difference between sequentially received packets) in a certain previous time is calculated and a cumulative distribution function of the calculated packet interval is obtained. Meanwhile, a function value-corresponding to-flow end that is a boundary value of the cumulative distribution function to be considered as a flow end (timeout) in the range of a cumulative distribution function value is stored. From the cumulative distribution function obtained as described above, a value of a packet interval mapped to a cumulative distribution function value that matches the function value-corresponding to-flow end is set as a threshold. That is, the threshold is dynamically set based on a previous packet interval. Therefore, a packet stop period from a last packet reception time to a current time is measured, and it is detected as a flow timeout at a timing when the measured value is equal to or greater than the threshold.Type: ApplicationFiled: July 24, 2012Publication date: August 14, 2014Applicant: NEC COMMUNICATION SYSTEMS, LTDInventors: Hiroyuki Iizuka, Toshiyasu Tanaka, Koichi Yoshimura, Masahito Iwai, Tetsuya Ito
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Patent number: 8797834Abstract: A disclosed objective lens includes: a lens having an entrance surface and an emission surface; and an anti-reflection coat formed on the emission surface, wherein a transmittance T1—0 [%] of the anti-reflection coat when an incident angle of a first laser beam having a first wavelength ?1 (390 nm??1?430 nm) is 0°, and the transmittance T1—40 [%] of the anti-reflection coat when the incident angle of the first laser beam is 40° satisfy 0.95?T1—0/T1—40?1.05, and a transmittance T2—0 [%] of the anti-reflection coat when an incident angle of a second laser beam having a second wavelength ?2 (630 nm??2?680 nm) is 0° and a transmittance T2—40 [%] of the anti-reflection coat when the incident angle of the second laser beam is 40° satisfy 0.85?T2—0/T2—40?0.97.Type: GrantFiled: May 31, 2011Date of Patent: August 5, 2014Assignee: Panasonic CorporationInventors: Fumitomo Yamasaki, Hiroshi Shiroiwa, Yoshiaki Komma, Junichi Asada, Osamu Kajino, Noriaki Terahara, Toshiyasu Tanaka
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Publication number: 20140078877Abstract: The present application discloses detection lens provided with lens portion and flange portion including first surface connected to lens portion and second surface opposite to first surface. Flange portion includes base along optical axis of lens portion, and first to fourth projections projecting from base. First and second projections are point-symmetric around optical axis. Third and fourth projections are point-symmetric around optical axis. Flange portion excludes projection extending beyond second surface. First projection includes first intersecting surface which intersects with first axis. Second projection includes second intersecting surface which intersects with first axis. Third projection includes third intersecting surface which intersects with second axis. Fourth projection includes fourth intersecting surface which intersects with second axis. First distance between first and second intersecting surfaces is longer than second distance between third and fourth intersecting surfaces.Type: ApplicationFiled: December 20, 2012Publication date: March 20, 2014Applicant: PANASONIC CORPORATIONInventors: Toshiyasu Tanaka, Noriaki Terahara, Takeshi Ohta, Shinsuke Hatanaka, Fumitomo Yamasaki
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Patent number: 8614938Abstract: An objective lens unit according to the present invention includes a first objective lens 41; and a first lens holder 2 for supporting the first objective lens 41. The first lens holder 2 is formed of a material which transmits ultraviolet. Preferably, the first lens holder 2 includes a through-hole, having first and second openings 2a and 2b, through which light incident on the first objective lens 41 passes, and an opening limiting section 3 provided along a circumferential direction of the through-hole and projecting toward a central axis of the through-hole. The first objective lens 41 is supported so as to block the first opening 2b. The opening limiting section 3 guides light incident thereon from the second opening 2a in a direction away from an optical axis of the first objective lens.Type: GrantFiled: January 26, 2011Date of Patent: December 24, 2013Assignee: Panasonic CorporationInventors: Yoshiaki Komma, Kanji Wakabayashi, Kousei Sano, Toshiyasu Tanaka, Keiichi Matsuzaki, Hidenori Wada
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Publication number: 20130329621Abstract: A terminal device 2 transmits a wireless frame having a frame length or amplitude that represents the ID of a wireless base station 1 to be woken up to the wireless base station 1. The wireless base station 1 detects the wakeup ID from the frame length or amplitude of the wireless frame from the terminal device 2, and, if the detected wakeup ID is identical with its own ID, transitions from a sleep mode to an operating mode. In this case, the wireless frame is the same wireless frame as that transmitted and received by the wireless communication module of the terminal device 2 to and from the wireless base station 1.Type: ApplicationFiled: February 16, 2012Publication date: December 12, 2013Applicants: NEC COMMUNICATIONS SYSTEMS, LTD., ADVANCED TELECOMMUNICATIONS RESEARCH INSTITUTE INTERNATIONALInventors: Yoshihisa Kondo, Hiroyuki Yomo, Suhua Tang, Sadao Obana, Tetsuya Ito, Koichi Yoshimura, Masahito Iwai, Toshiyasu Tanaka, Hiroyuki Iizuka