Patents by Inventor Akihiro Yoshimoto
Akihiro Yoshimoto 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).
-
Patent number: 11964501Abstract: A printing device includes a housing, a head arranged inside the housing and configured to eject a liquid, a fan arranged inside the housing, a humidifier configured to supply humidified air to a supply port arranged at an exhaust port side of the fan, and a filter arranged at a fan side of the supply port.Type: GrantFiled: September 30, 2021Date of Patent: April 23, 2024Assignee: BROTHER KOGYO KABUSHIKI KAISHAInventors: Akihiro Kawakita, Hisaaki Yoshimoto
-
Patent number: 10189096Abstract: A crankshaft machining system includes a center hole boring device, a post-centering balance meter and a cutting device. The post-centering balance meter is configured to measure the shape of a post-centering crankshaft blank on the basis of a pair of center holes. Additionally, the post-centering balance meter is configured to set a principal axis of inertia on the basis of the shape of the post-centering crankshaft blank and generate center hole positional information for correction that indicates intersections between the principal axis of inertia and both end surfaces of the post-centering crankshaft blank. The center hole boring device is configured to bore a pair of center holes on both end surfaces of another crankshaft blank to be loaded next on the basis of the center hole positional information for correction.Type: GrantFiled: January 10, 2014Date of Patent: January 29, 2019Assignee: KOMATSU NTC LTD.Inventors: Akihiro Yoshimoto, Masumi Shimomura
-
Patent number: 9175719Abstract: A method of determining a center hole of a material crankshaft, which is obtained through molding with first and second molds, includes: obtaining first shape data of a first portion of the material crankshaft molded by the first mold and second shape data of a second portion of the material crankshaft molded by the second mold; comparing the first and second shape data respectively with first and second designed data corresponding to the first and second molds, respectively, for computing a misalignment amount of each of the first and second portions due to misalignment between the first and second molds; adjusting, based on the misalignment amount, data corresponding to the misalignment amount to reproduce actual shape data; and determining, based on the actual shape data, a position of the center hole in the material crankshaft such that a rotation balance of the material crankshaft is within a predetermined range.Type: GrantFiled: June 25, 2009Date of Patent: November 3, 2015Assignee: KOMATSU NTC LTD.Inventor: Akihiro Yoshimoto
-
Publication number: 20150306681Abstract: A crankshaft machining system includes a center hole boring device, a post-centering balance meter and a cutting device. The post-centering balance meter is configured to measure the shape of a post-centering crankshaft blank on the basis of a pair of center holes. Additionally, the post-centering balance meter is configured to set a principal axis of inertia on the basis of the shape of the post-centering crankshaft blank and generate center hole positional information for correction that indicates intersections between the principal axis of inertia and the both end surfaces of the post-centering crankshaft blank. The center hole boring device is configured to bore a pair of center holes on both end surfaces of another crankshaft blank to be loaded next on the basis of the center hole positional information for correction.Type: ApplicationFiled: January 10, 2014Publication date: October 29, 2015Applicant: KOMATSU NTC LTD.,Inventors: Akihiro YOSHIMOTO, Masumi SHIMOMURA
-
Patent number: 9120161Abstract: A center hole machining method includes first to fifth steps. The first step includes obtaining outer peripheral shape data of a plurality of portions of the shaft blank in an axial direction. The second step includes obtaining a center axis by comparing measured data of the portions of the shaft blank with design data. The third step includes calculating a minimum distance from the center axis to the outer periphery in each of the portions of the shaft blank. The fourth step includes shifting the center axis in a direction of making the minimum distance greater than the machining dimension and repeatedly executing the third step when the minimum distance is less than or equal to the machining dimension. The fifth step includes boring the center hole in an end surface of the shaft blank at a position arranged on a line extended from the center axis.Type: GrantFiled: January 21, 2011Date of Patent: September 1, 2015Assignee: KOMATSU NTC LTD.Inventor: Akihiro Yoshimoto
-
Publication number: 20130287511Abstract: A workpiece centering apparatus has a first work clamp, a second work clamp, and centering drills. The first work clamp is moved in an X-axis direction to make an actual workpiece central axis parallel to a preliminarily given target workpiece central axis, and the centering drills are moved in the X-axis direction to make the actual workpiece central axis with respect to the X-axis direction coincident with the target workpiece central axis with respect to the X-axis direction. The second work clamp is moved in the Y-axis direction to make the actual workpiece central axis parallel to the target workpiece central axis, and the centering drills are moved in the Y-axis direction to make the position of the actual workpiece central axis with respect to the Y-axis direction coincident with the target workpiece central axis with respect to the Y-axis direction.Type: ApplicationFiled: October 5, 2011Publication date: October 31, 2013Applicant: KOMATSU NTC LTD.Inventor: Akihiro Yoshimoto
-
Publication number: 20120259452Abstract: A center hole machining method includes first to fifth steps. The first step includes obtaining outer peripheral shape data of a plurality of portions of the shaft blank in an axial direction. The second step includes obtaining a center axis by comparing measured data of the portions of the shaft blank with design data. The third step includes calculating a minimum distance from the center axis to the outer periphery in each of the portions of the shaft blank. The fourth step includes shifting the center axis in a direction of making the minimum distance greater than the machining dimension and repeatedly executing the third step when the minimum distance is less than or equal to the machining dimension. The fifth step includes boring the center hole in an end surface of the shaft blank at a position arranged on a line extended from the center axis.Type: ApplicationFiled: January 21, 2011Publication date: October 11, 2012Applicant: KOMATSU NTC LTD.Inventor: Akihiro Yoshimoto
-
Patent number: 8103374Abstract: A processing apparatus includes a three-dimensional shape data acquiring section, a tentative center-hole position determining section, a shape simulating section, a balance deciding section, and a center-hole deciding section. The tentative center-hole position determining section is configured to determine a tentative position of the center holes based on the three-dimensional shape data. The shape simulating section is configured to obtain a simulated shape of the material crankshaft after a working is simulated for the material crankshaft based on the tentative position of the center holes as a reference. The balance deciding section is configured to decide whether a rotational imbalance amount in the simulated shape is within a predetermined allowable range. The center-hole deciding section is configured to decide the tentative position as an actual boring position of the center holes when the rotational imbalance amount is within the predetermined allowable range.Type: GrantFiled: July 22, 2008Date of Patent: January 24, 2012Assignee: Komatsu NTC Ltd.Inventor: Akihiro Yoshimoto
-
Publication number: 20110085865Abstract: A center hole boring device is configured to bore a center hole for working on each of two end surfaces of a material crankshaft. The center hole boring device includes a main clamper, a measurement chuck and a working section. The main clamper is configured to fixedly hold the material crankshaft. The measurement chuck is configured to hold two ends of the material crankshaft so that a shape of the material crankshaft is measured while keeping a posture of the material crankshaft held by the main clamper. The working section is configured to bore a center hole on each of the both end surfaces of the material crankshaft held by the main clamper.Type: ApplicationFiled: June 24, 2009Publication date: April 14, 2011Applicant: Komatsu Machinery Corp.Inventor: Akihiro Yoshimoto
-
Publication number: 20110071806Abstract: A method of determining a center hole of a material crankshaft, which is obtained through molding with first and second molds, includes: obtaining first shape data of a first portion of the material crankshaft molded by the first mold and second shape data of a second portion of the material crankshaft molded by the second mold; comparing the first and second shape data respectively with first and second designed data corresponding to the first and second molds, respectively, for computing a misalignment amount of each of the first and second portions due to misalignment between the first and second molds; adjusting, based on the misalignment amount, data corresponding to the misalignment amount to reproduce actual shape data; and determining, based on the actual shape data, a position of the center hole in the material crankshaft such that a rotation balance of the material crankshaft is within a predetermined range.Type: ApplicationFiled: June 25, 2009Publication date: March 24, 2011Applicant: KOMATSU MACHINERY CORP.Inventor: Akihiro Yoshimoto
-
Publication number: 20100179675Abstract: A processing apparatus includes a three-dimensional shape data acquiring section, a tentative center-hole position determining section, a shape simulating section, a balance deciding section, and a center-hole deciding section. The tentative center-hole position determining section is configured to determine a tentative position of the center holes based on the three-dimensional shape data. The shape simulating section is configured to obtain a simulated shape of the material crankshaft after a working is simulated for the material crankshaft based on the tentative position of the center holes as a reference. The balance deciding section is configured to decide whether a rotational imbalance amount in the simulated shape is within a predetermined allowable range. The center-hole deciding section is configured to decide the tentative position as an actual boring position of the center holes when the rotational imbalance amount is within the predetermined allowable range.Type: ApplicationFiled: July 22, 2008Publication date: July 15, 2010Applicant: KOMATSU MACHINERY CORP.Inventor: Akihiro Yoshimoto
-
Patent number: 7499813Abstract: A device for inspecting for minute flaws upon the outer surface of journal or pin portions of a crank shaft comprises a main device 12 and a control device 14. The main device 12 brings a gauge head 56, which can freely move forwards and backwards along a Y axis direction, into contact with an inspection region 16A of the the crank shaft 16 while rotating the crank shaft 16 around a rotational axis 16C, measures the surface position of the inspection region 16A for each of rotational angles, and obtains surface portion waveform data corresponding to rotational angle. The gauge head 56 has an oscillation function, and always contacts against the inspection region 16A during rotation. The control device 14 extracts high frequency waveform components from the obtained waveform data, and detects flaws on the inspection region based on the high frequency waveform components.Type: GrantFiled: August 25, 2005Date of Patent: March 3, 2009Assignee: Komatsu Machinery CorporationInventors: Makoto Yamamoto, Akihiro Yoshimoto
-
Publication number: 20080033664Abstract: A device for inspecting for minute flaws upon the outer surface of journal or pin portions of a crank shaft comprises a main device 12 and a control device 14. The main device 12 brings a gauge head 56, which can freely move forwards and backwards along a Y axis direction, into contact with an inspection region 16A of the the crank shaft 16 while rotating the crank shaft 16 around a rotational axis 16C, measures the surface position of the inspection region 16A for each of rotational angles, and obtains surface portion waveform data corresponding to rotational angle. The gauge head 56 has an oscillation function, and always contacts against the inspection region 16A during rotation. The control device 14 extracts high frequency waveform components from the obtained waveform data, and detects flaws on the inspection region based on the high frequency waveform components.Type: ApplicationFiled: August 25, 2005Publication date: February 7, 2008Inventors: Makoto Yamanoto, Akihiro Yoshimoto
-
Patent number: 5853887Abstract: The improved white conductive powder comprises white inorganic pigment particles the surfaces of which are coated with an electrically conductive layer of a dual structure consisting of a lower tin dioxide sub-layer and an upper tin dioxide-containing indium oxide sub-layer. To produce the powder, the hydration product of tin is deposited uniformly on the surfaces of white inorganic particles and, subsequently, an overcoat of indium oxide hydrate containing 0.1-20 wt % of tin dioxide is formed, followed by a heat treatment that is conducted at 350.degree.-750.degree. C. in a non-oxidizing atmosphere.Type: GrantFiled: July 23, 1996Date of Patent: December 29, 1998Assignee: Titan Kogo Kabushiki KaishaInventors: Akihiro Yoshimoto, Toshihiro Yoshinaga, Shigeru Nagaoka, Masayasu Morishita
-
Patent number: 5552389Abstract: The present invention provides suppressory compositions against hepatic metastases of tumors which comprise a phosphoric acid diester compound of the formula: ##STR1## (wherein R.sub.1 and R.sub.2 each is the same as or different from the other and represents hydrogen or methyl) or a pharmacologically acceptable salt thereof.Type: GrantFiled: March 27, 1995Date of Patent: September 3, 1996Assignee: Senju Pharmaceutical Co., Ltd.Inventors: Tetsuya Toge, Toshihiro Hirai, Akihiro Yoshimoto, Kenichi Yoshida
-
Patent number: 4954438Abstract: This invention relates to a process for preparing an antibiotic D788-7 wherein, after culturing carborubicin-producing bacteria, the obtained culture liquid is extracted in acidic conditions while stirring to be absorbed to synthetic resin, followed by desorption from the resin and elution with acetone and the resulting acetone solution containing carborubicin is converted into an antibiotic D788-7 by photo radiation, for obtaining D788-7 in the purified form from the reaction solution. The production yield for D788-7 is extremely high and its use as an antitumor agent can be made possible.Type: GrantFiled: August 21, 1989Date of Patent: September 4, 1990Assignee: Sanraku IncorporatedInventors: Akihiro Yoshimoto, Osamu Jodo, Yoshio Watanabe, Rokuro Okamoto, Tomio Takeuchi
-
Patent number: 4918172Abstract: Disclosed are anthracycline antibiotics of a formula (I): ##STR1## in which R.sup.1 and R.sup.2 are hydroxyl groups, R.sup.3 is ethyl group, R.sup.4 is methoxycarbonyl group and X represents daunosamine-rhodenose or daunosamine-deoxyfucose; orR.sup.1 and R.sup.2 are hydroxyl groups, R.sup.3 is 1-hydroxyethyl group, R.sup.4 is hydrogen atom and X represents daunosamine-rhodenose or daunosamine-deoxyfucose; orR.sup.1, R.sup.2 and R.sup.4 are hydroxyl groups, R.sup.3 is ethyl group and X represents daunosamine-rhodenose, daunosamine-deoxyfucose, rhodosamine-rhodenose, N-monomethyldaunosamine-rhodenose or N-monomethyldaunosamine-deoxyfucose; orR.sup.1 is methoxy group, R.sup.2 is hydroxyl group, R.sup.3 is ethyl group, R.sup.4 is methoxycarbonyl group and X represents daunosamine-rhodenose or daunosamine-deoxyfucose; orR.sup.1 and R.sup.4 are hydroxy groups, R.sup.2 is hydrogen atom, R.sup.Type: GrantFiled: October 3, 1988Date of Patent: April 17, 1990Assignee: Sanraku IncorporatedInventors: Akihiro Yoshimoto, Osamu Jodo, Yoshio Watanabe, Rokuro Okamoto, Tomoyuki Ishikura, Hiroshi Naganawa, Tsutomu Sawa, Tomio Takeuchi
-
Patent number: 4897470Abstract: New anthracycline antibiotics of a formula (I) are provided, which are usable as an anticancer agent ##STR1## (where R represents a hydrogen atom or a hydroxyl group). The antibiotics (I) can be produced by incubation of a dye-nonproductive or hardly dye-productive mutant strain which has an ability of converting .alpha.-citromycinone or .beta.-isorhodomycinone into the antibiotics (I), in the presence of .alpha.-citromycinone or .beta.-isorhodomycinone in a pertinent nutrient medium.Type: GrantFiled: April 6, 1987Date of Patent: January 30, 1990Assignee: Sanraku IncorporatedInventors: Akihiro Yoshimoto, Osamu Jodo, Yoshio Watanabe, Tomoyuki Ishikura, Tsutomu Sawa, Tomio Takeuchi, Hamao Umezawa, deceased
-
Patent number: 4734493Abstract: The antibiotics designated obelmycins exhibit high proliferation inhibiting action against leukemia cells and are effective as anti-cancer agents.Type: GrantFiled: April 7, 1986Date of Patent: March 29, 1988Assignee: Sanraku, IncorporatedInventors: Akihiro Yoshimoto, Osamu Jodo, Yoshio Watanabe, Tomoyuki Ishikura, Tsutomu Sawa, Tomio Takeuchi, Hamao Umezawa
-
Patent number: 4612371Abstract: Novel anthracycline antibiotics characteristic of Ring A of the anthracycline skeleton are produced by microorganisms belonging to the genus Streptomyces and are useful as anti-cancer agents.Type: GrantFiled: July 18, 1985Date of Patent: September 16, 1986Assignee: Sanraku IncorporatedInventors: Akihiro Yoshimoto, Shizuka Fujii, Katsuro Kubo, Tomoyuki Ishikura, Tsutomu Sawa, Tomio Takeuchi, Hamao Umezawa