Patents by Inventor Yoshinori Ishida
Yoshinori Ishida 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: 20120279258Abstract: A dehydration-sintering furnace includes a muffle tube that accommodates therein the porous preform, a heater that heats the porous preform from outside of the muffle tube, a furnace body that accommodates the heater at an outer periphery of the muffle tube. When a gas required for dehydrating and sintering the porous preform is supplied in the muffle tube, and a pressure in the muffle tube is measured, an average value of the pressure in the muffle tube P0 and a standard deviation of the pressure in the muffle tube ?0 are controlled to satisfy a relation P0?3×?0>0.Type: ApplicationFiled: July 23, 2012Publication date: November 8, 2012Applicant: THE FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshinori ISHIDA, Seiichi Shinada, Mitsuhiro Kawasaki
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Patent number: 8280221Abstract: A transmission server system includes: a material output portion that temporarily stores materials making up a program and transferred from a material server and outputs the materials by successively reading out the materials, wherein the material output portion has a plurality of recording and reproducing portions, the materials making up the program are transferred from the material server commonly to the plurality of recording and reproducing portions and recorded in each, and the respective materials are reproduced by and outputted from a recoding and reproducing portion as a transmission subject among the plurality of recording and reproducing portions.Type: GrantFiled: March 11, 2010Date of Patent: October 2, 2012Assignee: Sony CorporationInventors: Tsuyoshi Kawabe, Yoshinori Ishida, Akiyuki Takano, Naoko Seki, Yuki Hikita, Yoshie Tadano, Rikako Yanagisawa
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Publication number: 20110027111Abstract: A hermetic compressor includes a closed vessel for storing lubricating oil, an electric-driving element, and a compressing element driven by the electric-driving element. The compressing element includes a cylinder block forming a compression chamber, a piton that reciprocates inside the compression chamber, and an oiling device for supplying the lubricating oil to an outer circumference of the piston. A first oil groove is concavely formed on the outer circumference of the piston, and a second oil groove is concavely formed on a side opposite to the compression chamber relative to the first oil groove. The second oil groove has a spatial volume same or greater than that of the first oil groove. An expanded clearance portion is provided such that a clearance between the piston and the cylindrical hole portion broadens from a top dead point to a bottom dead point.Type: ApplicationFiled: May 8, 2009Publication date: February 3, 2011Applicant: Panasonic CorporationInventors: Ko Inagaki, Akira Nakano, Yoshinori Ishida, Ichiro Morita
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Publication number: 20100239229Abstract: A transmission server system includes: a material output portion that temporarily stores materials making up a program and transferred from a material server and outputs the materials by successively reading out the materials, wherein the material output portion has a plurality of recording and reproducing portions, the materials making up the program are transferred from the material server commonly to the plurality of recording and reproducing portions and recorded in each, and the respective materials are reproduced by and outputted from a recoding and reproducing portion as a transmission subject among the plurality of recording and reproducing portions.Type: ApplicationFiled: March 11, 2010Publication date: September 23, 2010Inventors: Tsuyoshi KAWABE, Yoshinori Ishida, Akiyuki Takano, Naoko Seki, Yuki Hikita, Yoshie Tadano, Rikako Yanagisawa
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Publication number: 20100043497Abstract: An optical fiber having a length of 1 km or more with average transmission loss in a wavelength band of 1383 nm being less than average transmission loss in a wavelength band of 1310 nm, wherein a maximum value of any 1 km section loss in the wavelength band of 1383 nm does not exceed the average transmission loss by 0.03 dB/km or more.Type: ApplicationFiled: October 13, 2009Publication date: February 25, 2010Applicant: Furukawa Electric Co., Ltd.Inventors: Fumio Takahashi, Masahide Kuwabara, Yoshinori Ishida, Masato Oku
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Publication number: 20090136375Abstract: A refrigerant compressor having a compression element comprising sliding components made of metallic materials, wherein a mixed layer is formed by solid-dissolving molybdenum disulfide in at least one of the sliding faces of the sliding components, and a single molybdenum disulfide layer is further formed on the surface of the mixed layer. With this configuration, initial break-in is done using the single layer, and sliding loss is reduced. Even if the single layer peels off, because the molybdenum disulfide of the mixed layer is cleaved at a low friction coefficient, solid lubrication action is attained, the friction coefficient of the sliding section is lowered, and sliding loss is reduced.Type: ApplicationFiled: September 8, 2006Publication date: May 28, 2009Inventors: Hiromitsu Iwata, Makoto Katayama, Ikutomo Umeoka, Yuuki Yoshimi, Hirotaka Kawabata, Yoshinori Ishida, Masato Ishiwata
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Publication number: 20090092796Abstract: In a sliding member according to the present invention and a manufacturing method thereof, at least one component selected from the group consisting of alumina, silica, mullite, calcium oxide, magnesium oxide and iron oxide is transferred onto a base material, thereby forming a transfer layer (104, 204, 304, 404) at a sliding face of at least one of mutually sliding members (101, 201, 301, 401), thereby, the sliding face is provided with at least one or more of the following properties of these components: mechanical strength, solid lubrication, fracture toughness, and sliding property.Type: ApplicationFiled: February 1, 2007Publication date: April 9, 2009Inventors: Yoshinori Ishida, Hatsuhiko Usami
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Patent number: 7478997Abstract: A compressor which includes a piston (150) reciprocating in a cylinder bore (111) provided in a cylinder block. Length of the circumferential surface at the compression load side (160) is made to be longer than that at the anti-compression load side (170), so that area of sliding-contact surface at the compression load side is greater than that at the anti-compression load side. The above configuration is effective to prevent occurrence of wearing due to unsymmetrical contact of piston with cylinder bore. Thus, deterioration in the refrigeration capability and instability of the performance is prevented.Type: GrantFiled: June 14, 2005Date of Patent: January 20, 2009Assignee: Panasonic CorporationInventor: Yoshinori Ishida
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Publication number: 20080202166Abstract: A dehydration-sintering furnace includes a muffle tube that accommodates therein the porous preform, a heater that heats the porous preform from outside of the muffle tube, a furnace body that accommodates the heater at an outer periphery of the muffle tube. When a gas required for dehydrating and sintering the porous preform is supplied in the muffle tube, and a pressure in the muffle tube is measured, an average value of the pressure in the muffle tube P0 and a standard deviation of the pressure in the muffle tube ?0 are controlled to satisfy a relation P0?3×?0>0.Type: ApplicationFiled: February 23, 2007Publication date: August 28, 2008Applicant: THE FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshinori Ishida, Seiichi Shinada, Mitsuhiro Kawasaki
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Publication number: 20080112822Abstract: A compressor which includes a piston (150) reciprocating in a cylinder bore (111) provided in a cylinder block. Length of the circumferential surface at the compression load side (160) is made to be longer than that at the anti-compression load side (170), so that area of sliding-contact surface at the compression load side is greater than that at the anti-compression load side. The above configuration is effective to prevent occurrence of wearing due to unsymmetrical contact of piston with cylinder bore. Thus, deterioration in the refrigeration capability and instability of the performance is prevented.Type: ApplicationFiled: June 14, 2005Publication date: May 15, 2008Inventor: Yoshinori Ishida
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Patent number: 7164831Abstract: An optical fiber having a small increase in loss at a wavelength of approximately 1400 nm involved in a deuterium treatment is provided, and an evaluation method to decide whether an optical fiber is that having such a loss increase, and a fabrication method of an optical fiber having a small increase in such a loss are also provided. An optical fiber according to the present invention comprises a core composed of a silica glass doped with at least germanium and a cladding composed of a silica glass surrounding it. The optical fiber is exposed to an atmosphere containing hydrogen or deuterium to diffuse hydrogen molecules or deuterium molecules in the optical fiber, and after that, the outer periphery of the glass region of the optical fiber is etched to an outer diameter of 50 ?m, and then the electron spin density of PORs is 1×1013 spins/g or less when the glass region is measured by the electron-spin resonance method.Type: GrantFiled: July 12, 2005Date of Patent: January 16, 2007Assignee: The Furukawa Electric Co., Ltd.Inventors: Kazuhiko Kurusu, Hideya Moridaira, Yoshinori Ishida
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Patent number: 7144229Abstract: A hermetic electric compressor is capable of efficiently pumping up a necessary amount of lubricating oil even at low-speed rotation and has a simple constitution to provide an excellent workablity in assembling. The hermetic electric compressor includes an oil pump. The oil pump includes (i) a slanting channel formed in the lower portion of a main shaft and slanting from the lower portion to the upper portion thereof outwardly, (ii) a throttle formed at the bottom end of the main shaft and having an inlet port of diameter smaller than the section of the slanting channel at the center thereof, and (iii) a lower communicating passage for providing a communication between the bottom end of a spiral groove and the slanting channel. This constitution is capable of effectively lift the head of the lubricating oil.Type: GrantFiled: July 15, 2002Date of Patent: December 5, 2006Assignee: Matsushita Refrigeration CompanyInventors: Yoshinori Ishida, Toshihiko Ota, Terumasa Ide, Makoto Katayama, Takafumi Horiguchi, Takahide Nagao
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Patent number: 7142755Abstract: An optical fiber characterized by a cutoff wavelength of 1310 nm or less, a transmission loss of 0.40 dB/km or less at the wavelength of 1385 nm before hydrogen ageing, a transmission loss of 0.40 dB/km or less in the wavelength range of 1310 nm to 1625 nm after hydrogen ageing, and an electron spin density of the Non-Bridging Oxygen Hole Center of 1×1013 spins/g or less measured by the electron spin resonance method after the diameter of the optical fiber is made to be about 50 ?m by etching in diluted hydrofluoric acid, that having high reliability of hydrogen-proof characteristic suitable for WDM transmission in 1310 nm to 1625 nm and the method of evaluating the optical fiber are offered.Type: GrantFiled: May 19, 2005Date of Patent: November 28, 2006Assignee: The Furukawa Electric Co., Ltd.Inventors: Kazuhiko Kurusu, Hideya Moridaira, Masahide Kuwabara, Yoshinori Ishida
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Patent number: 7079736Abstract: An optical fiber having a length of one kilometer or more with average transmission loss at a wavelength of 1383 nm being less than average transmission loss at a wavelength of 1310 nm, wherein a maximum value of a transmission loss at the wavelength of 1383 nm of any one kilometer section along the entire length of the optical fiber does not exceed the average transmission loss at the wavelength of 1383 nm along the entire length of the optical fiber by 0.03 dB/km or more.Type: GrantFiled: June 30, 2003Date of Patent: July 18, 2006Assignee: The Furukawa Electric Co., Ltd.Inventors: Fumio Takahashi, Hideya Moridaira, Masahide Kuwabara, Yoshinori Ishida, Satoru Ise
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Publication number: 20060110112Abstract: An optical fiber having a length of 1 km or more with average transmission loss in a wavelength band of 1383 nm being less than average transmission loss in a wavelength band of 1310 nm, wherein a maximum value of any 1 km section loss in the wavelength band of 1383 nm does not exceed the average transmission loss by 0.03 dB/km or more.Type: ApplicationFiled: January 12, 2006Publication date: May 25, 2006Applicant: The Furukawa Electric Co., Ltd.Inventors: Fumio Takahashi, Hideya Moridaira, Masahide Kuwabara, Yoshinori Ishida, Masato Oku
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Publication number: 20060039803Abstract: A compressing unit of a hermetic compressor includes a suction valve placed at an opening of a compressing room and a suction muffler. The muffler includes a suction muffler body which forms a sound-deadening space, a first communicating path which communicates with the suction valve and with the sound-deadening space, and a second communicating path which communicates with a hermetic container and with the sound-deadening space. An opening, situated in the sound-deadening space, of the first communicating path, and an opening, situated in the sound-deadening space, of the second communicating path are both open in the same direction. In addition, a sound-insulating wall is disposed on the wall of the muffler body at a place at least confronting both of the openings. This structure achieves low noise and high efficiency.Type: ApplicationFiled: July 27, 2004Publication date: February 23, 2006Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTDInventors: Akira Nakano, Ko Inagaki, Yoshinori Ishida, Shuhei Sugimoto
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Publication number: 20060013706Abstract: A compressor which is inexpensive and highly reliable and capable of efficiently and securely drawing up oil in a stable manner even at the time of low-revolution driving is provided. Also, a compressor which is highly reliable and capable of maintaining the structure of a viscous pump in a stable condition for a long period is provided. The compressor has a closed container which stores oil and accommodates a compressing element for compressing gas. The compressing element includes a shaft which vertically extends and rotates and a viscous pump which communicates with oil.Type: ApplicationFiled: March 15, 2004Publication date: January 19, 2006Inventors: Yoshinori Ishida, Hidetoshi Nishihara
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Publication number: 20060013546Abstract: An optical fiber having a small increase in loss at a wavelength of approximately 1400 nm involved in a deuterium treatment is provided, and an evaluation method to decide whether an optical fiber is that having such a loss increase, and a fabrication method of an optical fiber having a small increase in such a loss are also provided. An optical fiber according to the present invention comprises a core composed of a silica glass doped with at least germanium and a cladding composed of a silica glass surrounding it. The optical fiber is exposed to an atmosphere containing hydrogen or deuterium to diffuse hydrogen molecules or deuterium molecules in the optical fiber, and after that, the outer periphery of the glass region of the optical fiber is etched to an outer diameter of 50 ?m, and then the electron spin density of PORs is 1×1013 spins/g or less when the glass region is measured by the electron-spin resonance method.Type: ApplicationFiled: July 12, 2005Publication date: January 19, 2006Applicant: THE FURUKAWA ELECTRIC CO., LTD.Inventors: Kazuhiko Kurusu, Hideya Moridaira, Yoshinori Ishida
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Publication number: 20050220430Abstract: An optical fiber characterized by a cutoff wavelength of 1310 nm or less, a transmission loss of 0.40 dB/km or less at the wavelength of 1385 nm before hydrogen ageing, a transmission loss of 0.40 dB/km or less in the wavelength range of 1310 nm to 1625 nm after hydrogen ageing, and an electron spin density of the Non-Bridging Oxygen Hole Center of 1×1013 spins/g or less measured by the electron spin resonance method after the diameter of the optical fiber is made to be about 50 ?m by etching in diluted hydrofluoric acid, that having high reliability of hydrogen-proof characteristic suitable for WDM transmission in 1310 nm to 1625 nm and the method of evaluating the optical fiber are offered.Type: ApplicationFiled: May 19, 2005Publication date: October 6, 2005Applicant: The Furukawa Electric Co., Ltd.Inventors: Kazuhiko Kurusu, Hideya Moridaira, Masahide Kuwabara, Yoshinori Ishida
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Patent number: 6944381Abstract: An optical fiber characterized by a cutoff wavelength of 1310 nm or less, a transmission loss of 0.40 dB/km or less at the wavelength of 1385 nm before hydrogen ageing, a transmission loss of 0.40 dB/km or less in the wavelength range of 1310 nm to 1625 nm after hydrogen ageing, and an electron spin density of the Non-Bridging Oxygen Hole Center of 1×1013spins/g or less measured by the electron spin resonance method after the diameter of the optical fiber is made to be about 50 ?m by etching in diluted hydrofluoric acid, that having high reliability of hydrogen-proof characteristic suitable for WDM transmission in 1310 nm to 1625 nm and the method of evaluating the optical fiber are offered.Type: GrantFiled: April 11, 2003Date of Patent: September 13, 2005Assignee: The Furukawa Electric Co., Ltd.Inventors: Kazuhiko Kurusu, Hideya Moridaira, Masahide Kuwabara, Yoshinori Ishida