Patents by Inventor Toshihiko Ishikawa
Toshihiko Ishikawa 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: 8472769Abstract: An optical fiber that has no bubbles in the ultraviolet ray curable resin filled inside the air holes to seal the end parts thereof, an end part processing method of the optical fiber, and an end part processing apparatus of the optical fiber, are provided. In an end part processing method of an optical fiber that is comprised of a core and a cladding formed around the core, the cladding having a refraction index lower than that of the core and has a plurality of air holes formed therein along the axis of the core, wherein the end part process of the optical fiber is to form sealed portions on the ends of the air holes by sealing them with ultraviolet ray curable resin, the method is characterized in that the sealed portion is formed by heating the end of the optical fiber.Type: GrantFiled: November 8, 2010Date of Patent: June 25, 2013Assignee: Hitachi Cable, Ltd.Inventors: Masao Tachikura, Kazumasa Ohsono, Noribumi Shiina, Kanako Suzuki, Yoshikazu Namekawa, Kyoji Osozawa, Toshihiko Ishikawa, Masaru Ishikawa, Motoyoshi Nakamura
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Patent number: 8213791Abstract: A communication light detecting device interconnecting light transmission paths and collocated therebetween, comprises: an optical coupling body including a core portion for photo coupling with the light transmission paths, and a light extracting portion for extracting a part of the communication light as a leakage light; and a light detecting portion having a light receiving member for receiving the leakage light. The light extracting portion is preferable to possess a lower refractive index than that of the core portion. Besides, the light extracting portion is preferable to include a light detecting use groove with a groove width of 50 ?m or more and 140 ?m or less formed by cutting and separating the core portion. Besides, the light extracting portion is preferable to be the optical coupling body in which outer diameter of the core portion is different from the outer diameter of a core of the light transmission path.Type: GrantFiled: May 14, 2009Date of Patent: July 3, 2012Assignees: Hitachi Cable, Ltd., Advanced Cable Systems Corp., NTT Communications CorporationInventors: Seiji Kojima, Kanako Suzuki, Yoshihiro Nakatani, Toshihiko Ishikawa, Takao Nishikawa, Kojiro Ito, Tetsuya Sueoka
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Publication number: 20110110637Abstract: An optical fiber that has no bubbles in the ultraviolet ray curable resin filled inside the air holes to seal the end parts thereof, an end part processing method of the optical fiber, and an end part processing apparatus of the optical fiber, are provided. In an end part processing method of an optical fiber that is comprised of a core and a cladding formed around the core, the cladding having a refraction index lower than that of the core and has a plurality of air holes formed therein along the axis of the core, wherein the end part process of the optical fiber is to form sealed portions on the ends of the air holes by sealing them with ultraviolet ray curable resin, the method is characterized in that the sealed portion is formed by heating the end of the optical fiber.Type: ApplicationFiled: November 8, 2010Publication date: May 12, 2011Applicant: HITACHI CABLE, LTD.Inventors: Masao TACHIKURA, Kazumasa OHSONO, Noribumi SHIINA, Kanako SUZUKI, Yoshikazu NAMEKAWA, Kyoji OSOZAWA, Toshihiko ISHIKAWA, Masaru ISHIKAWA, Motoyoshi NAKAMURA
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Publication number: 20100329604Abstract: An optical connector that requires no complicated fabrication operation such as highly accurate optical axis alignment and that permits an efficient pick up of part of the communication signal light being on-propagation along an optical transmission line, is provided.Type: ApplicationFiled: June 29, 2010Publication date: December 30, 2010Applicants: HITACHI CABLE, LTD., Advanced Cable Systems CorporationInventors: Seiji KOJIMA, Kanako SUZUKI, Yoshihiro NAKATANI, Toshihiko ISHIKAWA, Takao NISHIKAWA, Kojiro ITO, Tetsuya SUEOKA
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Publication number: 20100008676Abstract: A communication light detecting device interconnecting light transmission paths and collocated therebetween, comprises: an optical coupling body including a core portion for photo coupling with the light transmission paths, and a light extracting portion for extracting a part of the communication light as a leakage light; and a light detecting portion having a light receiving member for receiving the leakage light. The light extracting portion is preferable to possess a lower refractive index than that of the core portion. Besides, the light extracting portion is preferable to include a light detecting use groove with a groove width of 50 ?m or more and 140 ?m or less formed by cutting and separating the core portion. Besides, the light extracting portion is preferable to be the optical coupling body in which outer diameter of the core portion is different from the outer diameter of a core of the light transmission path.Type: ApplicationFiled: May 14, 2009Publication date: January 14, 2010Inventors: Seiji Kojima, Kanako Suzuki, Yoshihiro Nakatani, Toshihiko Ishikawa, Takao Nishikawa, Kojiro Ito, Tetsuya Sueoka
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Publication number: 20060241360Abstract: Disclosed a living body measuring apparatus which comprises data measurement means for measuring plural types of biological data of a user, data selection means for selecting one of the plural types of measured biological data, data display means for displaying the selected biological data, a plurality of light emitters corresponding to the plural types of biological data, and illumination control means for activating one of the light emitters which corresponds to one selected from the biological data by the data selection means. The living body measuring apparatus of the present invention can eliminate the possibility of user's confusion about biological data display and operational complication, at the lowest cost possible.Type: ApplicationFiled: July 20, 2005Publication date: October 26, 2006Inventors: James Montagnino, Toshihiko Ishikawa, Yuichi Miyashita
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Patent number: 6910403Abstract: To cut a protecting sheet adhered over the obverse of a wafer, an inclination angle of a cutting tool is adjusted according to a form of a chamfered part of the wafer and a finishing thickness of the wafer so that the protecting sheet is cut into the required minimum size for protecting the obverse of the wafer. Thus, the protecting sheet is not included inside a removed portion in a grinding process of the reverse of the wafer with a grindstone even if the wafer is ground to have extremely thin finishing thickness. Hence, the protecting sheet is not ground while the reverse of the wafer is ground, and the grindstone is thus prevented from being clogged up with ground material of the protecting sheet.Type: GrantFiled: June 5, 2000Date of Patent: June 28, 2005Assignee: Tokyo Seimitsu Co., Ltd.Inventors: Toshihiko Ishikawa, Yasushi Katagiri
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Patent number: 6910943Abstract: A polishing stage is mounted on a body provided with a rough grinding stage and a fine grinding stage so that a wafer can be roughly ground, finely ground and polished in one planarization apparatus. The planarization apparatus also has a cleaning stage for cleaning a polishing pad of the polishing stage to thereby clean the dirty cleaning pad. The planarization apparatus is also provided with an etching unit to thereby perform a sequence of planarization from the rough grinding to the etching.Type: GrantFiled: June 19, 2002Date of Patent: June 28, 2005Assignee: Tokyo Seimitsu Co., Ltd.Inventors: Toshihiko Ishikawa, Yasushi Katagiri
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Patent number: 6734856Abstract: Disclosed is an improved living body variable measuring apparatus equipped with a display capable of presenting a time-related graphic representation. The graphic representation is composed of crosswise arrangement of rectangles relative to abscissa and ordinate representing time and measured quantity respectively. Each time-related column has a selected rectangle representing the quantity of a measured living body variable. The horizontal time-related arrangement of narrow rectangles facilitates survey of graphic representation. The living body variable measuring apparatus permits the user to select desired data among those measured for record, preventing so selected data from invading locations allotted to others' data and vice versa.Type: GrantFiled: January 25, 2001Date of Patent: May 11, 2004Assignee: Tanita CorporationInventors: Toshihiko Ishikawa, Masato Kodama, Masaru Hirouchi, Kazuhiko Sakata
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Patent number: 6583032Abstract: In a process of manufacturing semiconductor chips, first, the reverse of a wafer, on the obverse of which many chips are formed, is ground so as to shape the wafer with a predetermined thickness. Then, the reverse of the wafer is polished or etched so that the broken layer which is formed during the back grinding is removed. Next, grooves are formed on the reverse of the wafer in a predetermined depth along streets formed between the chips. Finally, the wafer is cleft along the grooves so as to be divided into separate chips. By this process, the broken layer formed on the reverse of the wafer is removed after the back grinding, then the wafer is divided into separate chips by use of the cleavage; therefore, chipping is effectively reduced.Type: GrantFiled: October 30, 2000Date of Patent: June 24, 2003Assignee: Tokyo Seimitsu Co., Ltd.Inventors: Toshihiko Ishikawa, Yasushi Katagiri
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Patent number: 6519491Abstract: A bio-characteristic value measuring apparatus is provided, comprising an input device, a storage device, a measuring device, an arithmetic and control device, and a display device. The input device inputs a personal body data of a test subject; the storage device stores the inputted personal body data; the measuring device measure a physical characteristics of a living body; the arithmetic and control device evaluates a condition of the living body of the test subject based on the physical characteristics and the inputted personal body data; and the display device indicates the inputted personal body data and evaluated result. Upon setting the personal body data, a luminescent element in the input device corresponding to a section available for an entry operation is lighted up.Type: GrantFiled: January 26, 2001Date of Patent: February 11, 2003Assignee: Tanita CorporationInventors: Toshihiko Ishikawa, Kazuyasu Koyama, Hiroki Kenmochi
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Patent number: 6517420Abstract: A surface machining apparatus comprises a suction transfer device that is capable of transferring a ground thin wafer held thereon without damaging it. After the wafer is ground at two different grinding stages, the suction transfer device transfers the wafer from a chuck table to a cleaning stage. A holding surface of a suction disc in the suction transfer device is composed of a porous member having substantially the same diameter as the wafer, so that the entire surface of the wafer can be held on the holding surface of the suction disc.Type: GrantFiled: May 24, 2001Date of Patent: February 11, 2003Assignee: Tokyo Seimitsu Co., Ltd.Inventors: Toshihiko Ishikawa, Yasushi Katagiri
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Publication number: 20020160691Abstract: A polishing stage is mounted on a body provided with a rough grinding stage and a fine grinding stage so that a wafer can be roughly ground, finely ground and polished in one planarization apparatus. The planarization apparatus also has a cleaning stage for cleaning a polishing pad of the polishing stage to thereby clean the dirty cleaning pad. The planarization apparatus is also provided with an etching unit to thereby perform a sequence of planarization from the rough grinding to the etching.Type: ApplicationFiled: June 19, 2002Publication date: October 31, 2002Applicant: Tokyo Seimitsu Co., Ltd.Inventors: Toshihiko Ishikawa, Yasushi Katagiri
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Publication number: 20020111559Abstract: Disclosed is a visceral fat measuring apparatus for providing living body information including visceral fat information. The apparatus comprises a display unit for displaying the visceral fat information in such manner that visceral fat area is reduced by a fixed rate to produce a reduced level value for the visceral fat area which is then displayed as the visceral fat information.Type: ApplicationFiled: February 5, 2002Publication date: August 15, 2002Applicant: Tanita CorporationInventors: Soji Kurata, Toshihiko Ishikawa
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Patent number: 6431949Abstract: A planarization apparatus has a stocker in which a dressing board is stored. The dressing board is picked up from the stocker and mounted on a chuck table by a transport robot. Then, dressing of a grinding wheel or a polishing pad is performed with the dressing board. Thereafter, the used dressing board is withdrawn into the stocker by the transport robot after the process through cleaning and drying.Type: GrantFiled: July 10, 2000Date of Patent: August 13, 2002Assignee: Tokyo Seimitsu Co., Ltd.Inventors: Toshihiko Ishikawa, Yasushi Katagiri
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Patent number: 6431964Abstract: A polishing stage is mounted on a body provided with a rough grinding stage and a fine grinding stage so that a wafer can be roughly ground, finely ground and polished in one planarization apparatus. The planarization apparatus also has a cleaning stage for cleaning a polishing pad of the polishing stage to thereby clean the dirty cleaning pad. The planarization apparatus is also provided with an etching unit to thereby perform a sequence of planarization from the rough grinding to the etching.Type: GrantFiled: January 4, 2000Date of Patent: August 13, 2002Assignee: Tokyo Seimitsu Co., Ltd.Inventors: Toshihiko Ishikawa, Yasushi Katagiri
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Publication number: 20010050683Abstract: Disclosed is an improved living body variable measuring apparatus equipped with a display capable of presenting a time-related graphic representation. The graphic representation is composed of crosswise arrangement of rectangles relative to abscissa and ordinate representing time and measured quantity respectively. Each time-related column has a selected rectangle representing the quantity of a measured living body variable. The horizontal time-related arrangement of narrow rectangles facilitates survey of graphic representation. The living body variable measuring apparatus permits the user to select desired data among those measured for record, preventing so selected data from invading locations allotted to others' data and vice versa.Type: ApplicationFiled: January 25, 2001Publication date: December 13, 2001Applicant: TANITA CORPORATIONInventors: Toshihiko Ishikawa, Masato Kodama, Masaru Hirouchi, Kazuhiko Sakata
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Publication number: 20010024936Abstract: A surface machining apparatus comprises a suction transfer device that is capable of transferring a ground thin wafer held thereon without damaging it. After the wafer is ground at two different grinding stages, the suction transfer device transfers the wafer from a chuck table to a cleaning stage, A holding surface of a suction disc in the suction transfer device is composed of a porous member having substantially the same diameter as the wafer, so that the entire surface of the wafer can be held on the holding surface of the suction disc.Type: ApplicationFiled: May 24, 2001Publication date: September 27, 2001Inventors: Toshihiko Ishikawa, Yasushi Katagiri
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Patent number: 6280308Abstract: A round groove is formed at the center of a wafer sucking face of a wafer suction pad. A plurality of annular grooves are formed on the wafer sucking face concentrically with the round groove. Each of the grooves is connected with an air intake line. Each of the air intake lines is connected with an air sucking device via a valve. Intake of the air is controlled by opening and closing of each of the valves. When holding the wafer by suction, the air is sucked only from the groove or grooves located inside the outer diameter of the held wafer. Therefore, the entire face of each of wafers of various sizes can be appropriately held by one wafer suction pad.Type: GrantFiled: July 10, 2000Date of Patent: August 28, 2001Assignee: Tokyo Seimitsu Co., Ltd.Inventors: Toshihiko Ishikawa, Yasushi Katagiri
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Patent number: D546722Type: GrantFiled: October 21, 2005Date of Patent: July 17, 2007Assignee: Tanita CorporationInventors: James G. Montagnino, Toshihiko Ishikawa, Hiromi Akahori