Patents by Inventor Koichi Yabe
Koichi Yabe 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: 11517990Abstract: A machine tool (1) includes a spindle (32) supported on a support surface (37a) of a support body (37) with such an orientation that the longitudinal axis of the spindle extends along the support surface (37a). The spindle (32) is movable in a vertical direction that is perpendicular to the longitudinal axis of the spindle (32). The support body (37) is provided with a ventilation hole (80) extending through the support body (37) between the support surface (37a) and a surface (37b) facing in the direction opposite to the support surface (37a), to open toward the spindle (32).Type: GrantFiled: October 3, 2018Date of Patent: December 6, 2022Assignees: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.Inventors: Koichi Yabe, Yosuke Ando, Yosuke Wada, Wataru Katagishi
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Publication number: 20220219273Abstract: Provided are a coolant supply device and a machine tool in which ejection of a coolant is easily switched on and off. A coolant supply device 10 for supplying a coolant to a workpiece machining area in a machine tool, the coolant supply device comprising: a rotary nozzle 40 formed to have a cylindrical shape and having, at an outer circumferential face thereof having the cylindrical shape, an ejection port 51 for ejecting the coolant; and a supply device body 20 rotatably supporting the rotary nozzle and configured to be capable of supplying the coolant to the rotary nozzle. The supply device body is configured to be capable of switching an ejection allowed range in which the ejection port is opened and an ejection stopped range in which the ejection port is blocked from each other in accordance with rotation of the rotary nozzle.Type: ApplicationFiled: May 26, 2020Publication date: July 14, 2022Applicants: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.Inventors: Koichi YABE, Tadayasu SHIDA, Yosuke ANDO, Shinpei KAI
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Publication number: 20210086320Abstract: A machine tool (1) includes a spindle (32) supported on a support surface (37a) of a support body (37) with such an orientation that the longitudinal axis of the spindle extends along the support surface (37a). The spindle (32) is movable in a vertical direction that is perpendicular to the longitudinal axis of the spindle (32). The support body (37) is provided with a ventilation hole (80) extending through the support body (37) between the support surface (37a) and a surface (37b) facing in the direction opposite to the support surface (37a), to open toward the spindle (32).Type: ApplicationFiled: October 3, 2018Publication date: March 25, 2021Applicants: CITIZEN WATCH CO., LTD., CITIZEN MACHINERY CO., LTD.Inventors: Koichi YABE, Yosuke ANDO, Yosuke WADA, Wataru KATAGISHI
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Patent number: 8726770Abstract: There is provided a work supplying apparatus for automatically and smoothly supplying workpieces having various shapes and sizes from a rear end of a hollow spindle in a machine tool or assembling machine. The work supplying apparatus has a work pushing means for pushing the workpiece held by a holding means into a chuck, and a pusher for pushing and holding the workpiece supplied to a work receiver in the direction of the holding means.Type: GrantFiled: September 14, 2010Date of Patent: May 20, 2014Assignees: Citizen Holdings Co., Ltd., Citizen Machinery MIyano Co., Ltd.Inventors: Takaichi Nakaya, Shigeo Yanagidaira, Koichi Yabe
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Publication number: 20120186407Abstract: There is provided a work supplying apparatus for automatically and smoothly supplying workpieces having various shapes and sizes from a rear end of a hollow spindle in a machine tool or assembling machine. The work supplying apparatus has a work pushing means for pushing the workpiece held by a holding means into a chuck, and a pusher for pushing and holding the workpiece supplied to a work receiver in the direction of the holding means.Type: ApplicationFiled: September 14, 2010Publication date: July 26, 2012Applicants: CITIZEN MACHINERY MIYANO CO., LTD., CITIZEN HOLDINGS CO., LTD.Inventors: Takaichi Nakaya, Shigeo Yanagidaira, Koichi Yabe
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Patent number: 7066032Abstract: A pressure converter insusceptible to the error of hydraulic pressure introducing position or the interference of installation depth of water and producing a signal corresponding to the effective soil pressure accurately while realizing cost reduction. Since filters are provided in an air gap defined by two rigid plates receiving the soil pressure, a hydraulic pressure is applied but sand pressure is not applied. A load gauge insensitive to the hydraulic pressure detects only the effective soil pressure. Since a signal cable can be passed through the air gap, a plurality of pressure converters can be coupled efficiently and since the signal cable can be inserted internally, a pressure distributed in the depth direction can also be measured accurately.Type: GrantFiled: March 13, 2002Date of Patent: June 27, 2006Assignee: Educational Foundation Nihon UniversityInventors: Yoshihiko Maeno, Koichi Yabe
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Publication number: 20040200292Abstract: A pressure converter insusceptible to the error of hydraulic pressure introducing position or the interference of installation depth of water and producing a signal corresponding to the effective soil pressure accurately while realizing cost reduction. since filters(34,35) are provided in an air gap(10) defined by two rigid plates(13,14) Receiving the soil pressure, a hydraulic pressure is applied but sand pressure is not applied. A load gauge(41) insensitive to the hydraulic pressure detects only the effective soil pressure. Since a signal cable(51) can be passed through the air gap(10), a plurality of pressure converters(1,2) can be coupled efficiently and since the signal cable(51,52) can be inserted internally, a pressure distributed in the depth direction can also be measured accurately.Type: ApplicationFiled: January 29, 2004Publication date: October 14, 2004Inventors: Yoshihiko Maeno, Koichi Yabe
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Patent number: 4036751Abstract: A method of treating water containing chromate by bringing the water-to-be-treated into contact with ion-exchange resins, which comprises: passing the water-to-be-treated through a bed of weakly acidic cation exchange resin in H-form at first; subsequently passing the same water through a bed of weakly basic anion exchange resin in salt form thereby to remove said chromate from the water; introducing an alkali metal hydroxide solution into said weakly basic anion exchange resin bed in the reverse direction relative to the direction of passing of the water thereby to elute chromate; and further introducing an acid solution therein thereby to convert the weakly basic anion exchange resin into salt form.Type: GrantFiled: April 30, 1976Date of Patent: July 19, 1977Assignee: Kurita Water Industries Ltd.Inventors: Nobuhiro Orita, Koichi Yabe, Akifumi Kawanami