Patents by Inventor Hideyuki Kobori
Hideyuki Kobori 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: 8753721Abstract: A method containing: ejecting a coating liquid for a thermosensitive recording material from a slit, the coating liquid being formed of at least two layers; allowing the coating liquid to free-fall while guiding in the form of a curtain with a curtain edge guide; applying the coating liquid on a web which continuously travels; and drying the coating liquid to form a coated film, wherein the method uses a curtain coating method, the coating liquid contains a coating liquid of a thermosensitive recording layer and that of a layer adjacent to the thermosensitive recording layer, and dynamic surface tension A of the coating liquid of the thermosensitive recording layer and that B of the coating liquid of the layer has a difference (A?B) of 4 mN/m or less.Type: GrantFiled: March 18, 2010Date of Patent: June 17, 2014Assignee: Ricoh Company, Ltd.Inventors: Tomohito Shimizu, Shuji Hanai, Hideyuki Kobori
-
Patent number: 8647719Abstract: A curtain coating method including: ejecting at least one layer of a coating liquid from a slit, and making the ejected coating liquid fall freely from a curtain nozzle lip by using a curtain edge guide which guides the coating liquid in the form of a curtain liquid film, so as to apply the coating liquid onto a continuously running web, wherein the coating liquid is applied by moving the curtain edge guide toward the depth direction when the curtain liquid film is seen from the front.Type: GrantFiled: October 4, 2011Date of Patent: February 11, 2014Assignee: Ricoh Company, Ltd.Inventors: Tomohito Shimizu, Shuji Hanai, Hideyuki Kobori, Nobuyuki Nagasawa, Tetsuya Hara
-
Patent number: 8557732Abstract: A coating material capable of making a coating surface smoother, improving glossiness and being suitably used especially as a thermosensitive recording material, is provided, along with a method for producing the same. As a means for realizing the foregoing, there is provided a coating material produced by a multilayer simultaneous coating process, including: an outermost coating surface having moisture evaporation pores, wherein the moisture evaporation pores are 1.5 ?m or less in average diameter. And there is a method for producing the coating material, including: simultaneously depositing two or more types of coating solutions over a continuously running web, and drying the coating solutions, wherein a coating solution which constitutes a coating other than an outermost coating surface is formed of a dispersion solution, and dispersed particles contained in the dispersion solution are 1 ?m or less in average diameter.Type: GrantFiled: February 22, 2008Date of Patent: October 15, 2013Assignee: Ricoh Company, Ltd.Inventors: Hideyuki Kobori, Shuji Hanai, Tomohito Shimizu, Yasuhide Takashita
-
Patent number: 8539903Abstract: To provide an apparatus and method of curtain coating for applying onto a running web a coating solution from a lip top in the form of curtain to form a coating thereon, wherein a fluid is blown to remove excessive deposits of the coating solution that are formed at the edges in the width direction of the coating, and the deposits blown away by the fluid are ejected.Type: GrantFiled: April 7, 2011Date of Patent: September 24, 2013Assignee: Ricoh Company, Ltd.Inventors: Tomohito Shimizu, Shuji Hanai, Hideyuki Kobori, Yasuhide Takashita
-
Patent number: 8522713Abstract: To provide a curtain coating apparatus including: a slit from which at least one layer of a coating liquid is ejected; a curtain edge guide configured to guide the ejected coating liquid in the form of a curtain liquid film and make the coating liquid fall freely, while pouring an auxiliary liquid from the whole of a surface provided in contact with the coating liquid in the curtain edge guide, so as to apply the coating liquid onto a continuously running web; and a claw which supports the curtain liquid film at a bottom of the curtain edge guide, wherein when a residue of the liquid is left on the claw, the claw is configured to move.Type: GrantFiled: July 21, 2009Date of Patent: September 3, 2013Assignee: Ricoh Company, Ltd.Inventors: Hideyuki Kobori, Shuji Hanai, Tomohito Shimizu, Nobuyuki Nagasawa, Tetsuya Hara
-
Patent number: 8343588Abstract: To provide a slide curtain coating apparatus and method for depositing a curtain of coating liquid onto a running web, the apparatus and method capable of preventing the curtain from being condensed at its center region and preventing the resulting coating from having greater thickness at its edge regions. The coating apparatus includes: a slit for discharging the coating liquid; a slide on which the curtain flows down; and, a slide edge guide along which the curtain flows and which is provided at both edges on the slide and each having auxiliary liquid supply means at the surface facing the curtain; and auxiliary liquid supply means for discharging the auxiliary liquid from all over the surface thereof which touches the curtain at the edge guide. The coating method includes discharging the auxiliary liquid from all over the surface of the auxiliary supply means coating apparatus.Type: GrantFiled: December 2, 2010Date of Patent: January 1, 2013Assignee: Ricoh Company, Ltd.Inventors: Hideyuki Kobori, Shuji Hanai, Tomohito Shimizu, Yasuhide Takashita
-
Publication number: 20120082796Abstract: A curtain coating method including: ejecting at least one layer of a coating liquid from a slit, and making the ejected coating liquid fall freely from a curtain nozzle lip by using a curtain edge guide which guides the coating liquid in the form of a curtain liquid film, so as to apply the coating liquid onto a continuously running web, wherein the coating liquid is applied by moving the curtain edge guide toward the depth direction when the curtain liquid film is seen from the front.Type: ApplicationFiled: October 4, 2011Publication date: April 5, 2012Applicant: RICOH COMPANY. LTD.Inventors: Tomohito SHIMIZU, Shuji HANAI, Hideyuki KOBORI, Nobuyuki NAGASAWA, Tetsuya HARA
-
Publication number: 20110179998Abstract: To provide an apparatus and method of curtain coating for applying onto a running web a coating solution from a lip top in the form of curtain to form a coating thereon, wherein a fluid is blown to remove excessive deposits of the coating solution that are formed at the edges in the width direction of the coating, and the deposits blown away by the fluid are ejected.Type: ApplicationFiled: April 7, 2011Publication date: July 28, 2011Applicant: RICOH COMPANY, LTDInventors: Tomohito SHIMIZU, Shuji Hanai, Hideyuki Kobori, Yasuhide Takashita
-
Patent number: 7943200Abstract: To provide an apparatus and method of curtain coating for applying onto a running web a coating solution from a lip top in the form of curtain to form a coating thereon, wherein a fluid is blown to remove excessive deposits of the coating solution that are formed at the edges in the width direction of the coating, and the deposits blown away by the fluid are ejected.Type: GrantFiled: March 11, 2008Date of Patent: May 17, 2011Assignee: Ricoh Company, Ltd.Inventors: Tomohito Shimizu, Shuji Hanai, Hideyuki Kobori, Yasuhide Takashita
-
Publication number: 20110070377Abstract: To provide a slide curtain coating apparatus and method for depositing a curtain of coating liquid onto a running web, the apparatus and method capable of preventing the curtain from being condensed at its center region and preventing the resulting coating from having greater thickness at its edge regions. The coating apparatus includes: a slit for discharging the coating liquid; a slide on which the curtain flows down; and, a slide edge guide along which the curtain flows and which is provided at both edges on the slide and each having auxiliary liquid supply means at the surface facing the curtain; and auxiliary liquid supply means for discharging the auxiliary liquid from all over the surface thereof which touches the curtain at the edge guide. The coating method includes discharging the auxiliary liquid from all over the surface of the auxiliary supply means coating apparatus.Type: ApplicationFiled: December 2, 2010Publication date: March 24, 2011Applicant: RICOH COMPANY, LTD.Inventors: Hideyuki KOBORI, Shuji Hanai, Tomohito Shimizu, Yasuhide Takashita
-
Patent number: 7870833Abstract: To provide a slide curtain coating apparatus and method for depositing a curtain of coating liquid onto a running web, the apparatus and method capable of preventing the curtain from being condensed at its center region and preventing the resulting coating from having greater thickness at its edge regions. The coating apparatus includes: a slit for discharging the coating liquid; a slide on which the curtain flows down; and, a slide edge guide along which the curtain flows and which is provided at both edges on the slide and each having auxiliary liquid supply means at the surface facing the curtain; and auxiliary liquid supply means for discharging the auxiliary liquid from all over the surface thereof which touches the curtain at the edge guide. The coating method includes discharging the auxiliary liquid from all over the surface of the auxiliary supply means coating apparatus.Type: GrantFiled: September 14, 2007Date of Patent: January 18, 2011Assignee: Ricoh Company, Ltd.Inventors: Hideyuki Kobori, Shuji Hanai, Tomohito Shimizu, Yasuhide Takashita
-
Publication number: 20100239766Abstract: A method containing: ejecting a coating liquid for a thermosensitive recording material from a slit, the coating liquid being formed of at least two layers; allowing the coating liquid to free-fall while guiding in the form of a curtain with a curtain edge guide; applying the coating liquid on a web which continuously travels; and drying the coating liquid to form a coated film, wherein the method uses a curtain coating method, the coating liquid contains a coating liquid of a thermosensitive recording layer and that of a layer adjacent to the thermosensitive recording layer, and dynamic surface tension A of the coating liquid of the thermosensitive recording layer and that B of the coating liquid of the layer has a difference (A-B) of 4 mN/m or less.Type: ApplicationFiled: March 18, 2010Publication date: September 23, 2010Applicant: RICOH COMPANY, LTD.Inventors: Tomohito SHIMIZU, Shuji Hanai, Hideyuki Kobori
-
Publication number: 20100021645Abstract: To provide a curtain coating apparatus including: a slit from which at least one layer of a coating liquid is ejected; a curtain edge guide configured to guide the ejected coating liquid in the form of a curtain liquid film and make the coating liquid fall freely, while pouring an auxiliary liquid from the whole of a surface provided in contact with the coating liquid in the curtain edge guide, so as to apply the coating liquid onto a continuously running web; and a claw which supports the curtain liquid film at a bottom of the curtain edge guide, wherein when a residue of the liquid is left on the claw, the claw is configured to move.Type: ApplicationFiled: July 21, 2009Publication date: January 28, 2010Applicant: RICOH COMPANY, LTD.Inventors: Hideyuki KOBORI, Shuji Hanai, Tomohito Shimizu, Nobuyuki Nagasawa, Tetsuya Hara
-
Publication number: 20080226828Abstract: To provide an apparatus and method of curtain coating for applying onto a running web a coating solution from a lip top in the form of curtain to form a coating thereon, wherein a fluid is blown to remove excessive deposits of the coating solution that are formed at the edges in the width direction of the coating, and the deposits blown away by the fluid are ejected.Type: ApplicationFiled: March 11, 2008Publication date: September 18, 2008Applicant: Ricoh Company, Ltd.Inventors: Tomohito SHIMIZU, Shuji Hanai, Hideyuki Kobori, Yasuhide Takashita
-
Publication number: 20080206496Abstract: To provide a coating material capable of making a coating surface smoother, improving glossiness and being suitably used especially as a thermosensitive recording material, and a method for producing the same. As a means for realizing the foregoing, there is a coating material produced by a multilayer simultaneous coating process, including: an outermost coating surface having moisture evaporation pores, wherein the moisture evaporation pores are 1.5 ?m or less in average diameter. And there is a method for producing the coating material, including: simultaneously depositing two or more types of coating solutions over a continuously running web, and drying the coating solutions, wherein a coating solution which constitutes a coating other than an outermost coating surface is formed of a dispersion solution, and dispersed particles contained in the dispersion solution are 1 ?m or less in average diameter.Type: ApplicationFiled: February 22, 2008Publication date: August 28, 2008Applicant: Ricoh Company, Ltd.Inventors: Hideyuki KOBORI, Shuji Hanai, Tomohito Shimizu, Yasuhide Takashita
-
Publication number: 20080069965Abstract: To provide a slide curtain coating apparatus and method for depositing a curtain of coating liquid onto a running web, the apparatus and method capable of preventing the curtain from being condensed at its center region and preventing the resulting coating from having greater thickness at its edge regions. The coating apparatus includes: a slit for discharging the coating liquid; a slide on which the curtain flows down; and, a slide edge guide along which the curtain flows and which is provided at both edges on the slide and each having auxiliary liquid supply means at the surface facing the curtain; and auxiliary liquid supply means for discharging the auxiliary liquid from all over the surface thereof which touches the curtain at the edge guide. The coating method includes discharging the auxiliary liquid from all over the surface of the auxiliary supply means coating apparatus.Type: ApplicationFiled: September 14, 2007Publication date: March 20, 2008Inventors: Hideyuki Kobori, Shuji Hanai, Tomohito Shimizu, Yasuhide Takashita
-
Patent number: 6489265Abstract: A reversible thermosensitive recording medium includes a reversible thermosensitive recording layer including a matrix resin and an organic low-molecular-weight material dispersed in the matrix resin, of which transparency is reversibly changeable depending upon the temperature thereof, and having (1) a transparentizing upper-limit temperature of 125° C. or more, (2) a temperature difference of 20° C. or less between said transparentizing upper-limit temperature and an opaqueness initiation lower-limit temperature, and (3) a transparentizing initiation temperature of less than 95° C., and a method of recording and erasing images, using the recording medium, a method of producing the recording medium, and the application thereof a card, a label, writable or rewritable disk cartridge, disk and tape cassette are proposed.Type: GrantFiled: October 6, 2000Date of Patent: December 3, 2002Assignees: Ricoh Company, Ltd., Miyoshi Yushi Kabushiki KaishaInventors: Yoshihiko Hotta, Kunichika Moroboshi, Masafumi Torii, Kunitoshi Sugiyama, Hideyuki Kobori, Katsushi Sugiyama, Katsuaki Kokubo, Koji Kawai, Kazuo Hosoda, Masafumi Moriya
-
Patent number: 6362130Abstract: A reversible thermosensitive recording medium is capable of assuming a first color in a first temperature range which is above room temperature, having a first color assuming initiation temperature and a first color assuming upper-limit temperature, and assuming a second color when heated to a second temperature range which is above the first temperature range and then cooled, having a second color assuming lower-limit temperature, (a) the first color assuming upper-limit temperature being 125° C. or more, (b) the difference between the first color assuming upper-limit temperature and the second color assuming lower-limit temperature being 20° C. or less, and (c) the first color assuming initiation temperature being 95° C. or more, and a method of recording and erasing images, using the recording medium, a method of producing the recording medium, and the application thereof a card, a label, writable or rewritable disk cartridge, disk and tape cassette are proposed.Type: GrantFiled: September 2, 1998Date of Patent: March 26, 2002Assignees: Ricoh Company, Ltd., Miyoshi Yushi Kabushika KaishaInventors: Yoshihiko Hotta, Kunichika Morohoshi, Masafumi Torii, Kunitoshi Sugiyama, Hideyuki Kobori, Katsushi Sugiyama, Katsuaki Kokubo, Koji Kawai, Kazuo Hosoda, Masafumi Moriya
-
Patent number: 6174836Abstract: A reversible thermosensitive recording medium includes a reversible thermosensitive recording layer including a matrix resin and an organic low-molecular-weight material dispersed in the matrix resin, of which transparency is reversibly changeable depending upon the temperature thereof, and having (1) a transparentizing upper-limit temperature of 125° C. or more, (2) a temperature difference of 20° C. or less between said transparentizing upper-limit temperature and an opaqueness initiation lower-limit temperature, and (3) a transparentizing initiation temperature of less than 95° C., and a method of recording and erasing images, using the recording medium, a method of producing the recording medium, and the application thereof a card, a label, writable or rewritable disk cartridge, disk and tape cassette are proposed.Type: GrantFiled: July 17, 1998Date of Patent: January 16, 2001Assignees: Ricoh Company Ltd., Miyoshi Yushi Kabushiki KaishaInventors: Yoshihiko Hotta, Kunichika Moroboshi, Masafumi Torii, Kunitoshi Sugiyama, Hideyuki Kobori, Katsushi Sugiyama, Katsuaki Kokubo, Koji Kawai, Kazuo Hosoda, Masafumi Moriya
-
Patent number: 5380550Abstract: A reversible thermosensitive recording material composed of a support, and a reversible thermosensitive recording layer formed on the support, containing a matrix resin and an organic low-molecular-weight material, the organic low-molecular-weight material being dispersed in the form of discrete domains in the matrix resin, thereby constituting a phase-separation structure, with the periodic distance of the phase-separation structure of the reversible thermosensitive recording layer being 1.3 .mu.m or less. This reversible thermosensitive recording material can be produced by applying a coating liquid containing the organic low-molecular-weight material and the matrix resin which are dissolved in a solvent to the support to form the reversible thermosensitive recording layer on the support; and drying the applied coating liquid under such conditions controlled so as to obtain a 1.3 .mu.Type: GrantFiled: April 4, 1994Date of Patent: January 10, 1995Assignee: Ricoh Company, Ltd.Inventors: Kunitoshi Sugiyama, Hideyuki Kobori, Shuji Hanai, Tsutomu Kagawa