Patents by Inventor Michinori Tomomatsu
Michinori Tomomatsu 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: 9796035Abstract: A screen printing machine for forming a print of paste supplied to a mask plate having pattern holes, includes: a flexible filling squeegee which performs a squeegeeing operation in which the filling squeegee is moved relative to the mask plate in a printing direction; and a scraping squeegee which is held to maintain a given interval from the filling squeegee in the printing direction and to be movable together with the filling squeegee in the printing direction, and which scraps off the paste remaining on the mask plate after passage of the filling squeegee. In the squeegeeing operation, the filling squeegee is pushed up and bent by the paste to provide a clearance between a bottom end of the filling squeegee and the mask plate with the paste interposed therebetween so that the pattern holes are filled with paste with a prescribed filling pressure.Type: GrantFiled: November 12, 2014Date of Patent: October 24, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Seiya Kuroda, Tetsuya Tanaka, Michinori Tomomatsu
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Patent number: 9375915Abstract: In a screen printing that shifts squeegees in a horizontal direction while abutting the squeegees against a mask, and slides the squeegees on the mask, and scrapes up the paste on the mask so that opening portions are filled with the paste to transfer the paste onto the substrate, a larger amount of paste Ps is supplied to regions in which the paste is scraped up by the end portions of the squeegee than a region in which the paste is scraped up by a center portion of the squeegee on the mask.Type: GrantFiled: March 6, 2013Date of Patent: June 28, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Michinori Tomomatsu, Toshiyuki Murakami, Hiroki Kobayashi, Minoru Murakami, Akira Maeda
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Patent number: 9321076Abstract: A screen printing apparatus includes a substrate positioning part that upwardly and downwardly moves a substrate with the substrate clamped by a clamp member to thereby bring the substrate into contact with a mask stretched in a frame body and fixed in a predetermined height position from an underside of the mask and position the substrate in a predetermined height position, a mask suction part that is provided in the clamp member and sucks the mask in contact with the substrate, and a screen printing part that prints paste on the substrate through a pattern hole formed in the mask by sliding a squeegee on the mask to which the paste is supplied. The mask is pressed up by a predetermined amount through the substrate with the mask sucked by the mask suction part when the substrate is upwardly moved by the substrate positioning part.Type: GrantFiled: January 22, 2015Date of Patent: April 26, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masayuki Mantani, Michinori Tomomatsu
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Patent number: 9285204Abstract: To measure a film thickness of a coating film (25a) of a flux (25) serving as a bonding paste formed on a transfer stage (24) of a paste transfer unit (7), the film thickness of the coating film (25a) in a transfer area (26) is measured through a light-transmitting member (51) by a light interference method and by an optical type film thickness measuring sensor (53) which is arranged below the transfer stage (24). Thus, it is possible to automatically and accurately measure the film thickness of the flux (25) in the transfer area (26) without requiring any complicated measurement work.Type: GrantFiled: December 19, 2013Date of Patent: March 15, 2016Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masanori Ikeda, Yousuke Hassaku, Satoshi Furuichi, Masahiro Taniguchi, Michinori Tomomatsu
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Publication number: 20160059542Abstract: A screen printing apparatus includes: a mask plate having a pattern hole formed according to an arrangement of an electrode of a board; a squeegee base that moves along a first horizontal direction above the mask plate; a squeegee that is held by the squeegee base, and prints paste through the pattern hole onto the board abutting on a lower surface of the mask plate by moving together with the squeegee base and sliding on the mask plate in a squeegeeing direction along the first horizontal direction; and a paste supplying portion that moves together with the squeegee base and supplies the paste to the mask plate. The paste supplying portion supplies the paste to the mask plate while the squeegee is sliding on the mask plate.Type: ApplicationFiled: August 18, 2015Publication date: March 3, 2016Inventors: Hideki UCHIDA, Masayuki MANTANI, Michinori TOMOMATSU
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Publication number: 20150367626Abstract: A screen printer includes: a mask; a paste supply apparatus which supplies paste to the mask contacting a board; and a squeegee. The paste supply apparatus includes: a paste pot which is a disposable and consumable part, and which includes a bottomed cylindrical member which stores the paste, and an inner lid movably inserted into the cylindrical member and having a through hole formed in a center portion of the inner lid; a pot holding portion which holds the paste pot in a posture in which the through hole faces downward; and a paste extruding portion which moves the cylindrical member relative to the inner lid of the paste pot held by the pot holding portion and extrudes the paste from the through hole. The paste pot is disposed of after the paste is used up.Type: ApplicationFiled: February 4, 2014Publication date: December 24, 2015Inventors: Masayuki MANTANI, Hiroki KOBAYASHI, Hideaki MORI, Michinori TOMOMATSU
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Publication number: 20150345930Abstract: To measure a film thickness of a coating film (25a) of a flux (25) serving as a bonding paste formed on a transfer stage (24) of a paste transfer unit (7), the film thickness of the coating film (25a) in a transfer area (26) is measured through a light-transmitting member (51) by a light interference method and by an optical type film thickness measuring sensor (53) which is arranged below the transfer stage (24). Thus, it is possible to automatically and accurately measure the film thickness of the flux (25) in the transfer area (26) without requiring any complicated measurement work.Type: ApplicationFiled: December 19, 2013Publication date: December 3, 2015Applicant: Panasonic Intellectual Property Management Co. LtdInventors: Masanori Ikeda, Yousuke Hassaku, Satoshi Furuichi, Masahiro Taniguchi, Michinori Tomomatsu
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Publication number: 20150216058Abstract: A screen printing apparatus includes a substrate positioning part that upwardly and downwardly moves a substrate with the substrate clamped by a clamp member to thereby bring the substrate into contact with a mask stretched in a frame body and fixed in a predetermined height position from an underside of the mask and position the substrate in a predetermined height position, a mask suction part that is provided in the clamp member and sucks the mask in contact with the substrate, and a screen printing part that prints paste on the substrate through a pattern hole formed in the mask by sliding a squeegee on the mask to which the paste is supplied. The mask is pressed up by a predetermined amount through the substrate with the mask sucked by the mask suction part when the substrate is upwardly moved by the substrate positioning part.Type: ApplicationFiled: January 22, 2015Publication date: July 30, 2015Inventors: Masayuki MANTANI, Michinori TOMOMATSU
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Publication number: 20150129641Abstract: A screen printing machine for forming a print of paste supplied to a mask plate having pattern holes, includes: a flexible filling squeegee which performs a squeegeeing operation in which the filling squeegee is moved relative to the mask plate in a printing direction; and a scraping squeegee which is held to maintain a given interval from the filling squeegee in the printing direction and to be movable together with the filling squeegee in the printing direction, and which scraps off the paste remaining on the mask plate after passage of the filling squeegee. In the squeegeeing operation, the filling squeegee is pushed up and bent by the paste to provide a clearance between a bottom end of the filling squeegee and the mask plate with the paste interposed therebetween so that the pattern holes are filled with paste with a prescribed filling pressure.Type: ApplicationFiled: November 12, 2014Publication date: May 14, 2015Inventors: Seiya KURODA, Tetsuya TANAKA, Michinori TOMOMATSU
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Patent number: 8950321Abstract: At the two ends of a pair of clamping members (9a) which sandwich and clamp a board (10) from the Y direction, mask supporting members (9b) forming a rectangle frame are disposed, and a screen mask (12) is supported from below by the mask supporting members (9b) in a state that the board (10) abuts against the under surface of the screen mask (12). A downwards bending of the screen mask (12) can be prevented, and the time and labor of maintenance can be decreased by preventing the deposits of paste on the screen mask (12) that occur due to the bending.Type: GrantFiled: July 24, 2012Date of Patent: February 10, 2015Assignee: Panasonic CorporationInventors: Michinori Tomomatsu, Yuuji Ootake, Toshiyuki Murakami, Minoru Murakami, Akira Maeda
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Publication number: 20140318394Abstract: In a screen printing that shifts squeegees in a horizontal direction while abutting the squeegees against a mask, and slides the squeegees on the mask, and scrapes up the paste on the mask so that opening portions are filled with the paste to transfer the paste onto the substrate, a larger amount of paste Ps is supplied to regions in which the paste is scraped up by the end portions of the squeegee than a region in which the paste is scraped up by a center portion of the squeegee on the mask.Type: ApplicationFiled: March 6, 2013Publication date: October 30, 2014Applicant: Panasonic CorporationInventors: Michinori Tomomatsu, Toshiyuki Murakami, Hiroki Kobayashi, Minoru Murakami, Akira Maeda
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Publication number: 20140102322Abstract: A printing operation is repeatedly performed with respect to one substrate 2, the printing operation including the step of loading the substrate 2 (the step ST1), then contacting an upper surface of the substrate 2 with a mask 13 (the step ST4), reciprocating a squeegeeing operation to slide squeegees 33b on the mask 13 in contact with the substrate 2 to transfer a paste Pt on the mask 13 to the substrate 2 (the step ST7 and the step ST8), separating the substrate 2 from the mask 13 for a snap off (the step ST9), and while unloading the substrate 2 (the step ST11), performing mask cleaning to remove the paste Pt that is adhered to a lower surface of the mask 13 (the step ST12).Type: ApplicationFiled: August 14, 2012Publication date: April 17, 2014Applicant: PANASONIC CORPORATIONInventors: Michinori Tomomatsu, Yuuji Ootake, Toshiyuki Murakami, Minoru Murakami, Akira Maeda
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Publication number: 20130239830Abstract: At the two ends of a pair of clamping members (9a) which sandwich and clamp a board (10) from the Y direction, mask supporting members (9b) forming a rectangle frame are disposed, and a screen mask (12) is supported from below by the mask supporting members (9b) in a state that the board (10) abuts against the under surface of the screen mask (12). A downwards bending of the screen mask (12) can be prevented, and the time and labor of maintenance can be decreased by preventing the deposits of paste on the screen mask (12) that occur due to the bending.Type: ApplicationFiled: July 24, 2012Publication date: September 19, 2013Applicant: PANASONIC CORPORATIONInventors: Michinori Tomomatsu, Yuuji Ootake, Toshiyuki Murakami, Minoru Murakami, Akira Maeda
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Patent number: 8446466Abstract: A component mounting method includes: identifying, by image processing, a dark color region from image data obtained by imaging a two-dimensional region including a pickup face of a component to be picked up; deriving position data indicating a position of the identified dark color region; and deriving, based on the derived position data, a pickup position indicating a position at which a nozzle picks up the component. The imaging is performed by an imaging unit, and the dark color region indicates a dark color portion between electrodes of the component.Type: GrantFiled: June 14, 2011Date of Patent: May 21, 2013Assignee: Panasonic CorporationInventors: Masanori Ikeda, Michinori Tomomatsu, Satoshi Furuichi, Masahiro Taniguchi
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Patent number: 8428338Abstract: A method of determining a solder paste height of solder paste printed on a circuit board, the method including obtaining a two-dimensional image of the circuit board which is captured from above a solder printed surface, and determining the solder paste height corresponding to a pixel value of each of pixels of the two-dimensional image, based on height information which defines a relationship between the pixel value and the solder paste height, the pixel value being a value representing at least one of luminance of red in a RGB color model, luminance of green in the RGB color model, luminance of blue in the RGB color model, hue in a HSI color model, saturation in the HSI color model, and intensity in the HSI color model.Type: GrantFiled: February 20, 2012Date of Patent: April 23, 2013Assignee: Panasonic CorporationInventors: Masanori Ikeda, Michinori Tomomatsu, Masahiro Taniguchi, Yousuke Hassaku, Hiroshi Okamura
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Publication number: 20130089239Abstract: A method of determining a solder paste height of solder paste printed on a circuit board, the method including obtaining a two-dimensional image of the circuit board which is captured from above a solder printed surface, and determining the solder paste height corresponding to a pixel value of each of pixels of the two-dimensional image, based on height information which defines a relationship between the pixel value and the solder paste height, the pixel value being a value representing at least one of luminance of red in a RGB color model, luminance of green in the RGB color model, luminance of blue in the RGB color model, hue in a HSI color model, saturation in the HSI color model, and intensity in the HSI color model.Type: ApplicationFiled: February 20, 2012Publication date: April 11, 2013Inventors: Masanori Ikeda, Michinori Tomomatsu, Masahiro Taniguchi, Yousuke Hassaku, Hiroshi Okamura
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Publication number: 20130057676Abstract: A component mounting method includes: identifying, by image processing, a dark color region from image data obtained by imaging a two-dimensional region including a pickup face of a component to be picked up; deriving position data indicating a position of the identified dark color region; and deriving, based on the derived position data, a pickup position indicating a position at which a nozzle picks up the component. The imaging is performed by an imaging unit, and the dark color region indicates a dark color portion between electrodes of the component.Type: ApplicationFiled: June 14, 2011Publication date: March 7, 2013Inventors: Masanori Ikeda, Michinori Tomomatsu, Satoshi Furuichi, Masahiro Taniguchi
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Publication number: 20120216690Abstract: The screen printing mask is used for printing paste simultaneously on circuit boards held by the carrier. The mask has a flat mask plate. On the lower surface of the mask plate, a flat-bottomed recess capable to accommodating at least one of the circuit boards is formed so as to correspond to the array of the circuit boards on the carrier. A pattern hole is formed only in the recess.Type: ApplicationFiled: October 7, 2010Publication date: August 30, 2012Applicant: Panasonic CorporationInventors: Michinori Tomomatsu, Masanori Ikeda, Masahiro Taniguchi, Satoshi Furuichi
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Patent number: 6907824Abstract: A screen printing apparatus prints cream solder through a pattern hole of a mask plate, to which a substrate is brought into contact, by sliding a squeegee head. A three dimensional detector, such as a laser, is used to determine the extent to which the pattern hole is filled with the cream solder. Based on the determination result, the printing operation is modified, with respect to the positioning of the mask plate and substrate, to maintain the printing quality.Type: GrantFiled: June 20, 2003Date of Patent: June 21, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kimiyuki Yamasaki, Michinori Tomomatsu, Seikoh Abe, Seiichi Miyahara
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Patent number: 6820545Abstract: In a screen-printing apparatus for printing creamy solder paste on a substrate by attaching a screen mask to the substrate, a predetermined measuring position of the mechanisms in the screen-printing apparatus is measured three-dimensionally by a three-dimensional measuring device. Based on the measured result, a predetermined measuring point on an object to be measured is determined on a position relative to the origin of the mechanical coordinate system in the screen-printing apparatus, and the origin position on a control program can be set. As a result, machine adjusting operation and teaching operation in the screen-printing apparatus can be simplified with high accuracy.Type: GrantFiled: January 20, 2004Date of Patent: November 23, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kimiyuki Yamasaki, Michinori Tomomatsu, Seikoh Abe, Seiichi Miyahara, Yuji Otake, Takahiro Fukagawa, Kunihiko Tokita, Masayuki Mantani, Minoru Murakami