Patents by Inventor Masahiro Hamada
Masahiro Hamada 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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Publication number: 20100199301Abstract: A digital broadcast transmission device generates channel combination information associating a plurality of physical channels. The digital broadcast transmission device divides a bit stream into a plurality of bit streams, the bit stream including program-related information having added thereto channel combination information, and transmits the divided bit streams on the plurality of physical channels, respectively. A digital broadcast reception device selects the plurality of physical channels using a plurality of front ends based on the channel combination information, and demodulates broadcast waves received on the plurality of physical channels, respectively. The digital broadcast reception device combines bit streams obtained from the demodulation, and outputs the combined bit stream.Type: ApplicationFiled: July 30, 2008Publication date: August 5, 2010Inventors: Yoshikazu Hayashi, Kazuya Ueda, Makoto Sekitoh, Ippei Kanno, Tomohiro Kimura, Masahiro Hamada
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Publication number: 20100104247Abstract: An optical access network system for making a connection between a central-office optical cable and a subscriber optical cable is provided, the optical access network system being capable of facilitating the operation of laying optical cable. The optical access network system includes a connecting optical cable for forming a connection with one or a plurality of the subscriber optical cables, the connecting optical cable being obtained by assembling together a plurality of component cables having the same number of fibers as the one or plurality of subscriber optical cables. This optical access network system preferably further includes a subscriber enclosure for connecting one of the subscriber cables from among the one or plurality of subscriber optical cables and one of the component cables from among the plurality of component cables of the connecting cable.Type: ApplicationFiled: March 6, 2008Publication date: April 29, 2010Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Tsuyoshi Imaizumi, Katsuyuki Aihara, Hiroshi Miyano, Masahiro Hamada, Akio Kishi, Yoshiaki Terasawa, Keiju Okabe, Hiroshi Miyabayashi
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Publication number: 20100086258Abstract: An optical fiber connector 1 is provided with a mechanical splice section 3 for mechanically securing and connecting optical fibers 2 to each other. The mechanical splice section 3 includes a base plate 5 having a V-groove 4 for positioning the optical fibers 2 and a pressing plate 6 for pressing the optical fibers 2 against the base plate 5. A wedge inserting recessed section 8 is arranged at a boundary portion between the base plate 5 and pressing plate 6. The optical fiber connector 1 is provided with a wedge member 9 having a wedge section 13 adapted to be inserted into the wedge inserting recessed section 8 for opening the base plate 5 and pressing plate 6 from each other; a wedge insertion releasing member 10 for pressing the wedge member 9, so as to take the wedge section 13 out of the wedge inserting recessed section 8; and a housing 11 for covering the mechanical splice section 3, wedge member 9, and wedge insertion releasing member 10.Type: ApplicationFiled: April 11, 2008Publication date: April 8, 2010Inventors: Kenichiro Ohtsuka, Masahiro Hamada, Kouji Niikura, Daizou Nishioka
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Publication number: 20100080513Abstract: An outlet device, which is to be arranged on a wall surface, includes an outlet box in which electric wiring and optical interconnection are to be accommodated, and a cover plate which covers the outlet box. The cover plate includes a plate surface formed with an opening section through which an electric connection port of at least one of a telephone jack and an electric power supply outlet is to be exposed, and a bulged portion formed, on left or right side of the plate surface, to bulge frontward from the plate surface. The bulged portion is operable to accommodate a connection adaptor to which an optical connector attached directly to an end portion of an optical fiber is fitted, and includes a bottom face formed with an opening through which an optical connection port of the connection adaptor is to be exposed so as to be oriented downward.Type: ApplicationFiled: January 18, 2008Publication date: April 1, 2010Inventors: Masahiro Hamada, Yoshio Ukita, Motoyoshi Kimura, Tetsuya Ohsugi
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Publication number: 20090224019Abstract: A method of cutting an optical fiber easily on site such that its end face after being cut slants with respect to its optical axis A twist is applied to at least a portion of the optical fiber. A notch is formed in the coating and the fiber of the optical fiber at the cutting position, and an external force is applied to the optical fiber and cuts the optical fiber at the cutting position. The cutting device includes an optical fiber fixing means that fixes the optical fiber on one side of the cutting position of the optical fiber, optical fiber rotating means that fixes the optical fiber on its other side such that the optical fiber may freely rotate, and a blade that places the notch in the coating and the glass fiber.Type: ApplicationFiled: April 9, 2007Publication date: September 10, 2009Applicant: Sumitomo Electric Industries , Ltd.Inventors: Kenichiro Ohtsuka, Masahiro Hamada
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Publication number: 20090096936Abstract: A receiving device is used that includes a main tuner 11, a sub-tuner 12, and a control unit 13 is used. The main tuner 11 and the sub-tune 12 have local oscillators 25, 45, respectively, for generating local oscillation signals according to frequencies of selected channels, and extract signals on the selected channels by using the local oscillation signals. The control unit 13 judges whether the frequency of the channel selected by the main tuner 11 is identical to the frequency of the channel selected by the sub-tuner 12. When it is judged that they are identical, the control unit 13 stops the generation of the local oscillation signal by the local oscillator 45 of the sub-tuner 12 and causes the sub-tuner 12 to extract the signal on the selected channel by using the local oscillation signal generated by the local oscillator 25 of the main tuner.Type: ApplicationFiled: April 16, 2007Publication date: April 16, 2009Applicant: PANASONIC CORPORATIONInventors: Masahiro Hamada, Yukiro Kashima
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Patent number: 7341381Abstract: A cantilever type latch having the fixed end on the side of exposing the terminal end surface of the optical fiber is provided on the side of the plug housing. Near the center of the upper surface of the latch, an engaging projection which is to be engaged in the engaging hole formed in the adapter or the receptacle is formed. The engaging projection has the slope which decreases the height toward the fixed end side of the latch, in which the gradient of the slope is nearly equal to or greater than the rotation angle required for the elastic deformation of the latch with the fixed end functioned as the fulcrum. Thereby easy disconnecting of the latch is implemented.Type: GrantFiled: October 27, 2006Date of Patent: March 11, 2008Assignees: The Furukawa Electric Co., Ltd, Nippon Telegraph & Telephone Corporation, Fujikura Ltd., Sumitomo Electric Industries, Ltd.Inventors: Naoko Shimoji, Masato Shiino, Masanobu Toyonaga, Kuniaki Terakawa, Hiroyuki Tanase, Tatsuya Nakajima, Masashi Awamori, Kazuhiro Takizawa, Daigo Saitoh, Kenichiro Ohtsuka, Daizo Nishioka, Masahiro Hamada
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Publication number: 20070098329Abstract: A cantilever type latch having the fixed end on the side of exposing the terminal end surface of the optical fiber is provided on the side of the plug housing. Near the center of the upper surface of the latch, an engaging projection which is to be engaged in the engaging hole formed in the adapter or the receptacle is formed. The engaging projection has the slope which decreases the height toward the fixed end side of the latch, in which the gradient of the slope is nearly equal to or greater than the rotation angle required for the elastic deformation of the latch with the fixed end functioned as the fulcrum. Thereby easy disconnecting of the latch is implemented.Type: ApplicationFiled: October 27, 2006Publication date: May 3, 2007Applicants: The Furukawa Electric Co, Ltd., Nippon Telegraph and Telephone Corporation, Fujikura Ltd., Sumitomo Electric Industries, Ltd.Inventors: Naoko SHIMOJI, Masato Shiino, Masanobu Toyonaga, Kuniaki Terakawa, Hiroyuki Tanase, Tatsuya Nakajima, Masashi Awamori, Kazuhiro Takizawa, Daigo Saitoh, Kenichiro Ohtsuka, Daizo Nishioka, Masahiro Hamada
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Publication number: 20050288482Abstract: The invention relates to a process for the production of sulfoalkyl-containing polymers useful as ion-exchange resins, more particularly a process for the production of sulfoalkyl-containing polymers, characterized by subjecting a polymer having side chains represented by the structural formula (1): [wherein X is a leaving group, and n is an integer of 0 to 6] to replacement of X by acylthio, and then oxidizing the acylthio groups into sulfonic acid groups. According to the process, even the leaving groups (X) contained in the polymer matrix can be nearly quantitatively replaced by sulfonic acid groups, whereby an ion-exchange resin having high ion-exchange capacity can be obtained.Type: ApplicationFiled: October 10, 2003Publication date: December 29, 2005Inventors: Masahiro Hamada, Hiroki Hotta, Jun Iwabuchi, Shogo Kawakami, Takemichi Yamasaki, Hisabumi Kobayashi
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Publication number: 20040051727Abstract: In order to provide a display control technique that easily enables a high-visual-effect, dynamic display on a general-purpose information display screen without requiring complicated processing, an object as decorative operation information (e.g., drawing process information such as line drawing) displayed in multiple forms with respect to general-purpose original display information is defined by using the Internet such as HTML documents, and the object can be run in an image position in a high-order hierarchy multi-layered on the original display information.Type: ApplicationFiled: July 9, 2003Publication date: March 18, 2004Inventors: Hiroyuki Endo, Masahiro Hamada
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Patent number: 5777867Abstract: Herein disclosed are a method and an apparatus for supplying an electrical energy to a pair of discharge electrodes spaced apart from each other to cause an electric discharge in a gap between the discharge electrodes. There are firstly provided an alternating voltage generator for generating, as the electrical energy, an alternating voltage having a frequency, and a capacitor connected to the discharge electrodes in series. The alternating voltage generator has a series resonant frequency. The alternating voltage of the alternating voltage generator is applied to the discharge electrodes through the capacitor. The frequency of the alternating voltage is set approximately to the series resonant frequency of the alternating voltage generator to cause a dielectric breakdown in and allow an electric discharge current to flow through the gap between the discharge electrodes.Type: GrantFiled: August 7, 1996Date of Patent: July 7, 1998Assignees: Suitomo Electric Industries, Ltd., Sumiden Opcom, Ltd.Inventors: Hidetoshi Hongu, Masahiro Hamada, Masumi Fukai, Kazuo Iizuka
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Patent number: 5708805Abstract: An image retrieving apparatus including a language analyzer, an object determiner, a rule for defining an undefined object, an image selector, a display, a word dictionary, and an image database. The language analyzer analyzes an input sentence and extracts objects of the input sentence. The object determiner determines whether the object data expresses a background or a part using a rule for defining an undefined object. Images of background and parts are separately retrieved.Type: GrantFiled: October 12, 1993Date of Patent: January 13, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shusaku Okamoto, Masahiro Hamada
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Patent number: 5586246Abstract: An image synthesis apparatus for synthesizing an image using model data including information which defines a three-dimensional structure for an object having a plurality of faces, original image data representing values of pixels respectively belonging to the plurality of faces, and rendering data for converting a three-dimensional image synthesized using the model data and the original image data into a two-dimensional image includes memory divided into a plurality of memory blocks each having a prescribed address unit for storing the model data, the original image data, the rendering data, and synthesized image data representing the synthesized two-dimensional image; an arbiter section including an address space, continuous addresses in the address space being allocated to different memory blocks from one another so as to interleave the addresses in the plurality of memory blocks; and a processor section including a plurality of processors each for accessing the memory means through the arbiter section toType: GrantFiled: December 23, 1994Date of Patent: December 17, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kunio Nobori, Yoshiyasu Kado, Akira Kamogawa, Masahiro Hamada
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Patent number: 5546598Abstract: A working situation management system which includes an input section for inputting information relating to working, and a detecting section for detecting an occurrence of a predetermined change in the input information. A producing section included in the system produces information indicating a time at which the predetermined change occurs and information specifying the predetermined change, in accordance with the detected predetermined change. A storing section stores the information indicating a time at which the predetermined change occurs and the information specifying the predetermined change, as a working situation.Type: GrantFiled: February 2, 1994Date of Patent: August 13, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takao Yamaguchi, Masahiro Hamada
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Patent number: 5361324Abstract: An analyzer performs spectral analysis of a characteristic parameter of an input speech signal per unit time so as to calculate, as a recognition parameter, orthogonal expansion of a spectrum of the analyzed characteristic parameter. A formant frequency of the input speech signal is detected, and a compensation value is calculated for the recognition parameter using the formant frequency. The recognition parameter is compensated in accordance with variations of the input speech signal caused by a noisy environment using the compensation value. The compensated recognition parameter is compared with reference parameters to output a recognition result.Type: GrantFiled: November 30, 1992Date of Patent: November 1, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yumi Takizawa, Masahiro Hamada
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Patent number: 4992093Abstract: Disclosed herein are a derivative of azole having a usefulness in controlling plant fungal diseases, in regulating plant growth and in killing weeds, a process for producing the derivatives of azole and a composition having a fungicidal activity, a plant growth regulating activity and a herbicidal activity and containing the derivative of azole as an active ingredient for use in agriculture and horticulture.Type: GrantFiled: May 25, 1989Date of Patent: February 12, 1991Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Satoru Kumazawa, Atsushi Ito, Nobuo Sato, Toshihide Saishoji, Masahiro Hamada, Shiro Yamazaki, Hiroyuki Enari
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Patent number: 4863505Abstract: Disclosed herein are a derivative of azole having a usefulness in controlling plant fungal diseases, in regulating plant growth and in killing weeds, a process for producing the derivative of azole and a composition having a fungicidal activity, a plant growth regulating activity and a herbicidal activity and containing the derivative of azole as an active ingredient for use in agriculture and horticulture.Type: GrantFiled: September 4, 1986Date of Patent: September 5, 1989Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Satoru Kumazawa, Atsushi Ito, Nobuo Sato, Toshihide Saishoji, Masahiro Hamada, Shiro Yamazaki, Hiroyuki Enari
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Patent number: 4106988Abstract: A new species of bacteria, Methylomonas probus, is cultured in a medium containing methanol as a sole carbon source to obtain propagated bacterial cells that can be utilized as an effective source of protein in feed and food.Type: GrantFiled: February 22, 1977Date of Patent: August 15, 1978Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Katsuhisa Ohsugi, Daizo Takeuchi, Masahiro Hamada, Tamotsu Kano