Patents by Inventor Mitsuru Ishibashi
Mitsuru Ishibashi 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: 7858670Abstract: A photosensitive inkjet ink is provided, which includes a photo-acid generating agent, pigment, and an organic dispersion medium containing at least two kinds of polymerizable compounds selected from the group consisting of an oxetane compound and a vinyl ether compound, at least one kind of the polymerizable compounds being a monofunctional compound at a concentration of 20 to 70% based on a total weight of the organic dispersion medium, and the vinyl ether compound at a concentration of 30% or more based on a total weight of the organic dispersion medium. The vinyl ether compound is selected from the following chemical formula.Type: GrantFiled: February 8, 2007Date of Patent: December 28, 2010Assignees: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha ToshibaInventors: Ryozo Akiyama, Hiroshi Kiyomoto, Yukiko Kawakami, Kazuhiko Ohtsu, Toru Ushirogouchi, Mitsuru Ishibashi
-
Publication number: 20100246151Abstract: In a DC-DC converter module, a first through-hole conductor provided in a substrate as a first lead for electrically connecting a terminal as a voltage output terminal of an IC and a first terminal of an inductor component to each other and a second through-hole conductor provided in the substrate as a second lead for electrically connecting a terminal as a switching terminal of the IC and a second terminal of the inductor component to each other oppose each other in a direction intersecting a direction in which the first and second terminals oppose each other in the inductor component (i.e., the longitudinal direction of the substrate and inductor component).Type: ApplicationFiled: March 24, 2010Publication date: September 30, 2010Applicant: TDK CorporationInventors: Hirotada FURUKAWA, Mitsuru ISHIBASHI
-
Patent number: 7803851Abstract: An inkjet ink is provided, which includes a pigment dispersion containing an organic dispersant, a black pigment having an average particle diameter of not more than 200 nm, and a resinous dispersing agent, the organic dispersant being formed of at least one polymerizable compound, and the black pigment being included therein at an amount ranging from 2 to 30% by weight based on the organic dispersant, and an ionic compound. A ?-potential of the black pigment to the at least one polymerizable compound of the organic dispersant is confined within the range of ?10 mV to +100 mV.Type: GrantFiled: February 21, 2006Date of Patent: September 28, 2010Assignee: Toshiba Tec Kabushiki KaishaInventors: Mitsuru Ishibashi, Toru Ushirogouchi, Hiroshi Kiyomoto, Ryozo Akiyama, Kazuhiko Ohtsu, Yukiko Kawakami, Masashi Hiroki
-
Patent number: 7754785Abstract: There is provided a pigment dispersion comprising at least one resin-coated pigment comprising a resin and a pigment, and having an average particle diameter of 250 nm or less, and a dispersion medium containing as a major component a cation polymeric compound having a viscosity of 30 mPa·s or less at a temperature of 25° C. and a boiling point of 150° C. or more at 1 atm. The pigment is incorporated in the pigment dispersion at a ratio ranging from 3 to 41% by weight based on a total weight of the dispersion medium, and the resin is incorporated in the resin-coated pigment at a ratio ranging from 5 to 37% by weight based on the weight of the pigment.Type: GrantFiled: May 27, 2008Date of Patent: July 13, 2010Assignee: Toshiba Tec Kabushiki KaishaInventors: Toru Ushirogouchi, Ryozo Akiyama, Kazuhiko Ohtsu, Masashi Hiroki, Mitsuru Ishibashi
-
Publication number: 20090295662Abstract: The present invention provides a small antenna device realizing both miniaturization including lower profile and a broader band in a frequency band of hundreds MHz to 5 GHz and which can be mounted on a small device such as a cellular phone. An antenna device includes: a finite ground plane; a rectangular conductor plate provided above the finite ground plane, whose one side is connected to the finite ground plane, and having a bent portion substantially parallel with the one side; an antenna disposed substantially parallel with the finite ground plane above the finite ground plane, extending in a direction substantially perpendicular to the one side, and having a feeding point positioned near the other side facing the one side of the rectangular conductor plate; and a magnetic material provided in at least a part of space between the finite ground plane and the antenna.Type: ApplicationFiled: March 25, 2009Publication date: December 3, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tomohiro Suetsuna, Makoto Higaki, Kouichi Harada, Seiichi Suenaga, Mitsuru Ishibashi, Maki Yonetsu
-
Patent number: 7579390Abstract: There is proposed an inkjet ink composition comprising a pigment component to which a resin having a basic terminal is adsorbed, a photo-acid generating agent containing an onium salt, and at least one kind of solvent which can be polymerized under the presence of an acid. The content of multivalent salt included in the onium salt is not more than 20% by weight based on a total weight of onium salt, and the content of the pigment component is confined within the range of 3 to 41% by weight based on the ink composition.Type: GrantFiled: March 8, 2005Date of Patent: August 25, 2009Assignee: Toshiba Tec Kabushiki KaishaInventors: Toru Ushirogouchi, Kazuhiko Ohtsu, Mitsuru Ishibashi, Ryozo Akiyama, Masahi Hiroki
-
Patent number: 7473720Abstract: There is provided an inkjet ink comprising a photo-acid generating agent which is capable of generating an acid as it is irradiated with light, a color component, and an acid-polymerizable compound which can be polymerized in the presence of an acid, wherein at least 40% of the acid-polymerizable solvent is a vinyl ether compound represented by the following general formula (1): R13—R14—(R13)p (wherein R13(s) is a group selected from the group consisting of a vinyl ether group, a group having a vinyl ether skeleton, an alkoxy group, substituted hydroxyl group and hydroxyl group wherein at least one of R13(s) is vinyl ether group or a group having a vinyl ether skeleton, R14 is a group comprising a substituted or unsubstituted cyclic skeleton and having a valence of (p+1), and p is a positive integer including zero).Type: GrantFiled: December 7, 2006Date of Patent: January 6, 2009Assignee: Toshiba Tec Kabushiki KaishaInventors: Ryozo Akiyama, Toru Ushirogouchi, Kazuhiko Ohtsu, Mitsuru Ishibashi, Hiroshi Kiyomoto, Yukiko Kawakami
-
Patent number: 7439281Abstract: There is provided a pigment dispersion comprising at least one resin-coated pigment comprising a resin and a pigment, and having an average particle diameter of 250 nm or less, and a dispersion medium containing as a major component a cation polymeric compound having a viscosity of 30 mPa.s or less at a temperature of 25° C. and a boiling point of 150° C. or more at 1 atm. The pigment is incorporated in the pigment dispersion at a ratio ranging from 3 to 41% by weight based on a total weight of the dispersion medium, and the resin is incorporated in the resin-coated pigment at a ratio ranging from 5 to 37% by weight based on the weight of the pigment.Type: GrantFiled: October 20, 2004Date of Patent: October 21, 2008Assignee: Toshiba Tec Kabushiki KaishaInventors: Toru Ushirogouchi, Ryozo Akiyama, Kazuhiko Ohtsu, Masashi Hiroki, Mitsuru Ishibashi
-
Publication number: 20080242773Abstract: There is provided a pigment dispersion comprising at least one resin-coated pigment comprising a resin and a pigment, and having an average particle diameter of 250 nm or less, and a dispersion medium containing as a major component a cation polymeric compound having a viscosity of 30 mPa·s or less at a temperature of 25° C. and a boiling point of 150° C. or more at 1 atm. The pigment is incorporated in the pigment dispersion at a ratio ranging from 3 to 41% by weight based on a total weight of the dispersion medium, and the resin is incorporated in the resin-coated pigment at a ratio ranging from 5 to 37% by weight based on the weight of the pigment.Type: ApplicationFiled: May 27, 2008Publication date: October 2, 2008Inventors: Toru Ushirogouchi, Ryezo Akiyama, Kazuhiko Ohtsu, Masashi Hiroki, Mitsuru Ishibashi
-
Patent number: 7425525Abstract: There is proposed a washing solution for washing an inkjet printer head which performs printing by feeding an ink comprising at least two kinds of polymerizable compounds each differing in viscosity, a photopolymerization initiator, and pigment. This washing solution is characterized in that it contains not less than 50 parts by weight of a polymerizable compound selected from the polymerizable compounds included in the ink and having a lowest viscosity among the polymerizable compounds, or not less than 50 parts by weight of a polymerizable compound having a viscosity of 30 mPa·sec or less at ordinary temperature.Type: GrantFiled: February 23, 2005Date of Patent: September 16, 2008Assignee: Toshiba Tec Kabushiki KaishaInventors: Ryozo Akiyama, Toru Ushirogouchi, Mitsuru Ishibashi, Kazuhiko Ohtsu, Masashi Hiroki
-
Patent number: 7404852Abstract: An inkjet ink is provided, which includes a solvent and a pigment having an average particle diameter of not larger than 250 nm. The number of flocculates of pigment particles having a diameter of 1 ?m or more is 1.6×108/cm3 or less.Type: GrantFiled: September 14, 2006Date of Patent: July 29, 2008Assignee: Toshiba Tec Kabushiki KaishaInventors: Mitsuru Ishibashi, Toru Ushirogochi, Kazuhiko Ohtsu, Ryozo Akiyama, Masashi Hiroki
-
Patent number: 7375145Abstract: There is provided an inkjet ink comprising a photo-acid generating agent which is capable of generating an acid as it is irradiated with light, a color component, and an acid-polymerizable compound which can be polymerized in the presence of an acid, wherein at least 40% of the acid-polymerizable solvent is a vinyl ether compound represented by the following general formula (1): R13—R14—(R13)p ??(1) (Wherein R13(s) is a group selected from the group consisting of a vinyl ether group, a group having a vinyl ether skeleton, an alkoxy group, substituted hydroxyl group and hydroxyl group wherein at least one of R13(s) is vinyl ether group or a group having a vinyl ether skeleton, R14 is a group comprising a substituted or unsubstituted cyclic skeleton and having a valence of (p+1), and p is a positive integer including zero).Type: GrantFiled: October 20, 2004Date of Patent: May 20, 2008Assignee: Toshiba Tec Kabushiki KaishaInventors: Ryozo Akiyama, Toru Ushirogouchi, Kazuhiko Ohtsu, Mitsuru Ishibashi, Hiroshi Kiyomoto, Yukiko Kawakami
-
Publication number: 20070270520Abstract: There is provided an inkjet ink comprising a photo-acid generating agent which is capable of generating an acid as it is irradiated with light, a color component, and an acid-polymerizable compound which can be polymerized in the presence of an acid, wherein at least 40% of the acid-polymerizable solvent is a vinyl ether compound represented by the following general formula (1): R13—R14—(R13)p (wherein R13(s) is a group selected from the group consisting of a vinyl ether group, a group having a vinyl ether skeleton, an alkoxy group, substituted hydroxyl group and hydroxyl group wherein at least one of R13(s) is vinyl ether group or a group having a vinyl ether skeleton, R14 is a group comprising a substituted or unsubstituted cyclic skeleton and having a valence of (p+1), and p is a positive integer including zero).Type: ApplicationFiled: December 7, 2006Publication date: November 22, 2007Inventors: Ryozo Akiyama, Toru Ushirogouchi, Kazuhiko Ohtsu, Mitsuru Ishibashi, Hiroshi Kiyomoto, Yukiko Kawakami
-
Publication number: 20070252664Abstract: The present invention realizes a noise suppression circuit capable of suppressing noise in a wide frequency range even if impedance fluctuates on the input side or the output side. A noise suppression circuit has first and second inductors (L1, L2) inserted in series in a first conductive line (3), and a series circuit (15) configured to have a third inductor (L3) and a first capacitor (C1) connected in series. The third inductor (L3) side is connected between the first and second inductors (L1, L2). The noise suppression circuit further includes a second capacitor (C2) whose one end is connected to the first conductive line (3) on the first inductor (L1) side and whose other end is connected between the third inductor and the first capacitor in the series circuit (15).Type: ApplicationFiled: August 9, 2005Publication date: November 1, 2007Applicant: TDK CORPORATIONInventors: Yoshihiro Saitoh, Mitsuru Ishibashi
-
Publication number: 20070202437Abstract: A photosensitive composition is provided, which includes a cationic photopolymerization initiator, and an organic dispersion medium containing at least two kinds of polymerizable compounds selected from the group consisting of an oxetane compound and a vinyl ether compound represented by the following general formula (1), at least one of the polymerizable compounds being a monofunctional compound: R11—R12—(R11)p ??(1) wherein R11s are individually a group selected from the group consisting of a vinyl ether group, a vinyl ether skeleton-bearing group, an alkoxy group, a substituted hydroxyl group and hydroxyl group, at least one of R11s being a vinyl ether group or a vinyl ether skeleton-bearing group, R12 is a (p+1)-valent group having a substituted or unsubstituted cyclic skeleton or aliphatic skeleton, and p is a positive integer including zero.Type: ApplicationFiled: February 8, 2007Publication date: August 30, 2007Inventors: Mitsuru Ishibashi, Toru Ushirogouchi, Hiroshi Kiyomoto, Ryozo Akiyama, Yukiko Kawakami, Kazuhiko Ohtsu
-
Publication number: 20070185224Abstract: A photosensitive inkjet ink is provided, which includes a photo-acid generating agent, pigment, and an organic dispersion medium containing at least two kinds of polymerizable compounds selected from the group consisting of an oxetane compound and a vinyl ether compound, at least one kind of the polymerizable compounds being a monofunctional compound at a concentration of 20 to 70% based on a total weight of the organic dispersion medium, and the vinyl ether compound at a concentration of 30% or more based on a total weight of the organic dispersion medium. The vinyl ether compound is selected from the following chemical formula.Type: ApplicationFiled: February 8, 2007Publication date: August 9, 2007Inventors: Ryozo Akiyama, Hiroshi Kiyomoto, Yukiko Kawakami, Kazuhiko Ohtsu, Toru Ushirogouchi, Mitsuru Ishibashi
-
Publication number: 20070101898Abstract: There is provided an inkjet ink comprising a photo-acid generating agent which is capable of generating an acid as it is irradiated with light, a color component, and an acid-polymerizable compound which can be polymerized in the presence of an acid, wherein at least 40% of the acid-polymerizable solvent is a vinyl ether compound represented by the following general formula (1): R13—R14—(R13)p??(1) (Wherein R13(s) is a group selected from the group consisting of a vinyl ether group, a group having a vinyl ether skeleton, an alkoxy group, substituted hydroxyl group and hydroxyl group wherein at least one of R13(s) is vinyl ether group or a group having a vinyl ether skeleton, R14 is a group comprising a substituted or unsubstituted cyclic skeleton and having a valence of (p+1), and p is a positive integer including zero).Type: ApplicationFiled: December 7, 2006Publication date: May 10, 2007Inventors: Ryozo Akiyama, Toru Ushirogouchi, Kazuhiko Ohtsu, Mitsuru Ishibashi, Hiroshi Kiyomoto, Yukiko Kawakami
-
Publication number: 20070006773Abstract: An inkjet ink is provided, which includes a solvent and a pigment having an average particle diameter of not larger than 250 nm. The number of flocculates of pigment particles having a diameter of 1 ?m or more is 1.6×108/cm3 or less.Type: ApplicationFiled: September 14, 2006Publication date: January 11, 2007Inventors: Mitsuru Ishibashi, Toru Ushirogochi, Kazuhiko Ohtsu, Ryozo Akiyama, Masashi Hiroki
-
Publication number: 20060189716Abstract: A dispersion for ink is provided, which includes a dispersion medium, powder or pigment having an average particle diameter of not more than 300 nm, a polymer dispersing agent containing a first resinous dispersing agent and a second resinous dispersing agent, and an ionic compound. A mixing amount of the powder or pigment is 2% to 60% based on a total weight of the dispersion medium, a mixing amount of the first resinous dispersing agent is 1% to 60% based on a total weight of the powder or pigment, the second resinous dispersing agent is a resin having a basic terminal and a mixing amount of the second resinous dispersing agent is 1% to 30% based on a total weight of the powder or pigment, and a mixing amount of the ionic compound is 0.01% to 40% based on a total weight of the dispersion medium.Type: ApplicationFiled: February 21, 2006Publication date: August 24, 2006Inventors: Toru Ushirogouchi, Ryozo Akiyama, Kazuhiko Ohtsu, Mitsuru Ishibashi, Hiroshi Kiyomoto, Masashi Hiroki, Yukiko Kawakami
-
Publication number: 20060189715Abstract: An inkjet ink is provided, which includes a pigment dispersion containing an organic dispersant, a black pigment having an average particle diameter of not more than 200 nm, and a resinous dispersing agent, the organic dispersant being formed of at least one polymerizable compound, and the black pigment being included therein at an amount ranging from 2 to 30% by weight based on the organic dispersant, and an ionic compound. A ?-potential of the black pigment to the at least one polymerizable compound of the organic dispersant is confined within the range of ?10 mV to +100 mV.Type: ApplicationFiled: February 21, 2006Publication date: August 24, 2006Inventors: Mitsuru Ishibashi, Toru Ushirogouchi, Hiroshi Kiyomoto, Ryozo Akiyama, Kazuhiko Ohtsu, Yukiko Kawakami, Masashi Hiroki