Patents by Inventor Hiroshi Yoda
Hiroshi Yoda 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: 20130256093Abstract: A system for recovering an LPG fraction according to the present invention includes: a compressor increasing the pressure of excess gas such as associated gas; a deethanizer column dissolving, in a sponge oil, propane and butane contained in the excess gas and separating a gas having a carbon number of two or less from the excess gas; a sponge oil transfer pipe discharging the sponge oil from the deethanizer column; a debutanizer column separating propane and butane from the sponge oil; an LPG fraction discharge pipe discharging the fraction containing propane and butane from the debutanizer column; and a sponge oil return pipe returning the sponge oil from the debutanizer column to the deethanizer column.Type: ApplicationFiled: October 25, 2011Publication date: October 3, 2013Applicant: Cameron Japan Ltd.Inventors: Naoyuki Ishiwata, Hiroshi Yoda, Toshihiro Terada, Tatsuyuki Tsukui
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Patent number: 6233812Abstract: A method of manufacturing the front surface shape of plural magnetic heads precisely in batch in a desired dimension After fixing plural magnetic heads 1, 2 and preliminarily processing curved surfaces along the sliding direction S on a rotary member 4, the curved surfaces Ts along the thickness direction T orthogonal to the sliding direction S of the magnetic heads 1, 2 are formed in batch by finish polishing process by means of abrasive tape or the like.Type: GrantFiled: March 4, 1998Date of Patent: May 22, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Mitsuhisa Fujiki, Hiroshi Yoda, Tetsuya Okana, Masayuki Hino, Suekazu Kugioka
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Patent number: 5959770Abstract: A penta mirror diagonal and zoom lens assembly for refracting or catadioptric astronomical telescopes includes a specially adapted zoom lens with a key extending outward from an objective lens and an adaptor designed for insertion and retention in a viewing end of an astronomical or catadioptric telescope. The adaptor includes a keyway which mates with the key on the zoom lens, thus allowing the zoom lens to be used only with the adaptor. The zoom lens itself is specially designed for use with astronomical or catadioptric telescopes.Type: GrantFiled: June 4, 1998Date of Patent: September 28, 1999Assignee: Bushnell CorporationInventors: William C. Perkins, Hiroshi Yoda
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Patent number: 5729398Abstract: A head cleaning device for use in a magnetic recording and reproducing apparatus comprises a cleaning roller in which a lubricant with an excellent lubricating action under low humidity conditions impregnates the soft material. This lubricant compensates for the drop in the natural lubricating action resulting from a moisture deficiency, and therefore prevents the production of seized deposits. Furthermore, the head cleaning device comprises a first cleaning portion impregnated with polymer resin and abrasive particles, and a second cleaning portion comprising only a soft material, the second cleaning portion can remove by wiping any abrasive particles or deposits left on the magnetic head surface immediately after the abrasive cleaning action of the first cleaning member.Type: GrantFiled: December 12, 1996Date of Patent: March 17, 1998Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Norimoto Nouchi, Masaya Sakaguchi, Hiroshi Yoda, Yoshiaki Mizoh
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Patent number: 5602705Abstract: A head cleaning device for use in a magnetic recording and reproducing apparatus comprises a cleaning roller in which a lubricant with an excellent lubricating action under low humidity conditions impregnates the soft material. This lubricant compensates for the drop in the natural lubricating action resulting from a moisture deficiency, and therefore prevents the production of seized deposits. Furthermore, the head cleaning device comprises a first cleaning portion impregnated with polymer resin and abrasive particles, and a second cleaning portion comprising only a soft material, the second cleaning portion can remove by wiping any abrasive particles or deposits left on the magnetic head surface immediately after the abrasive cleaning action of the first cleaning member.Type: GrantFiled: April 5, 1995Date of Patent: February 11, 1997Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Norimoto Nouchi, Masaya Sakaguchi, Hiroshi Yoda, Yoshiaki Mizoh
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Patent number: 5543179Abstract: A head cleaning device for use in a magnetic recording and reproducing apparatus comprises a cleaning roller in which a lubricant with an excellent lubricating action under low humidity conditions impregnates the soft material. This lubricant compensates for the drop in the natural lubricating action resulting from a moisture deficiency, and therefore prevents the production of seized deposits. Furthermore, the head cleaning device comprises a first cleaning portion impregnated with polymer resin and abrasive particles, and a second cleaning portion comprising only a soft material, the second cleaning portion can remove by wiping any abrasive particles or deposits left on the magnetic head surface immediately after the abrasive action of the first cleaning member.Type: GrantFiled: June 7, 1995Date of Patent: August 6, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Norimoto Nouchi, Masaya Sakaguchi, Hiroshi Yoda, Yoshiaki Mizoh
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Patent number: 5453893Abstract: A head cleaning device for use in a magnetic recording and reproducing apparatus comprises a cleaning roller in which a lubricant with an excellent lubricating action under low humidity conditions impregnates the soft material. This lubricant compensates for the drop in the natural lubricating action resulting from a moisture deficiency, and therefore prevents the production of seized deposits. Furthermore, the head cleaning device comprises a first cleaning portion impregnated with polymer resin and abrasive particles, and a second cleaning portion comprising only a soft material, the second cleaning portion can remove by wiping any abrasive particles or deposits left on the magnetic head surface immediately after the abrasive cleaning action of the first cleaning member.Type: GrantFiled: June 14, 1993Date of Patent: September 26, 1995Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Norimoto Nouchi, Masaya Sakaguchi, Hiroshi Yoda, Yoshiaki Mizoh
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Patent number: 5327315Abstract: In order to prevent the staining of magnetic heads of a magnetic recorder in a low humidity environment, a refrigeration device which refrigerates a magnetic tape is positioned so as to engage the magnetic tape prior to the tape engaging the magnetic heads. The refrigeration device comprises either a refrigeration post or a refrigerated semi-closed space and functions to transfer water to the magnetic tape.Type: GrantFiled: September 1, 1992Date of Patent: July 5, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Norimoto Nouchi, Yoshiaki Mizoh, Hiroshi Yoda, Masaya Sakaguchi
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Patent number: 4382204Abstract: A tuning fork-shaped quartz oscillator comprises a U-shaped quartz oscillator body which comprises of a pair of vibration arms having a rectangular cross section and a base connecting the vibration arms at one end. Four excitation electrodes are provided respectively on the four sides of each vibration arm, each electrode having a portion laid on two adjacent sides. The oscillator further comprises connecting means including a first input terminal and a second input terminal which supply drive voltage to the excitation electrodes so that the vibration arms keep vibrating in opposite phase relation in both a bending mode and a twisting mode.Type: GrantFiled: November 18, 1980Date of Patent: May 3, 1983Assignee: Nihon Dempa Kogyo Co., Ltd.Inventor: Hiroshi Yoda