Patents by Inventor Tsutomu Katsumata
Tsutomu Katsumata 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: 12026504Abstract: A control system for a vehicle includes: a power source; a first power line; a second power line; a first relay; a second relay; at least one first control device; and at least one second control device. The first control device is configured to transmit a trigger signal to the second control device on condition that the first control device has detected that the first relay has been turned from off to on, and enable a first update program after transmitting the trigger signal. The first update program is an updated version of the first current program. The second control device is configured to enable a second update program on condition that the second control device has received the trigger signal from the first control device. The second update program is an updated version of the second current program.Type: GrantFiled: November 15, 2022Date of Patent: July 2, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tsutomu Katsumata
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Publication number: 20230266962Abstract: A control system for a vehicle includes: a power source; a first power line; a second power line; a first relay; a second relay; at least one first control device; and at least one second control device. The first control device is configured to transmit a trigger signal to the second control device on condition that the first control device has detected that the first relay has been turned from off to on, and enable a first update program after transmitting the trigger signal. The first update program is an updated version of the first current program. The second control device is configured to enable a second update program on condition that the second control device has received the trigger signal from the first control device. The second update program is an updated version of the second current program.Type: ApplicationFiled: November 15, 2022Publication date: August 24, 2023Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tsutomu KATSUMATA
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Patent number: 11022907Abstract: An image forming apparatus includes a first image forming unit for forming a first image on a sheet using a first toner. The first toner includes at least two fluorochromes which have a fluorescence peak in a wavelength range different from one another. A second image forming unit is configured to form a second image on the sheet using a second toner. The second toner includes a visible colored pigment. A softening point temperature of the first toner, as measured by differential scanning calorimetry, is higher than a softening point temperature of the second toner, as measured by differential scanning calorimetry.Type: GrantFiled: March 6, 2020Date of Patent: June 1, 2021Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Tsutomu Katsumata
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Publication number: 20200209777Abstract: An image forming apparatus includes a first image forming unit for forming a first image on a sheet using a first toner. The first toner includes at least two fluorochromes which have a fluorescence peak in a wavelength range different from one another. A second image forming unit is configured to form a second image on the sheet using a second toner. The second toner includes a visible colored pigment. A softening point temperature of the first toner, as measured by differential scanning calorimetry, is higher than a softening point temperature of the second toner, as measured by differential scanning calorimetry.Type: ApplicationFiled: March 6, 2020Publication date: July 2, 2020Inventor: Tsutomu KATSUMATA
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Patent number: 10663877Abstract: An image forming apparatus includes a first image forming unit for forming a first image on a sheet using a first toner. The first toner includes at least two fluorochromes which have a fluorescence peak in a wavelength range different from one another. A second image forming unit is configured to form a second image on the sheet using a second toner. The second toner includes a visible colored pigment. A softening point temperature of the first toner, as measured by differential scanning calorimetry, is higher than a softening point temperature of the second toner, as measured by differential scanning calorimetry.Type: GrantFiled: February 6, 2018Date of Patent: May 26, 2020Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA KABUSHIKI KAISHAInventor: Tsutomu Katsumata
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Patent number: 10620559Abstract: An image forming apparatus includes a first image forming unit for forming a first image on a sheet using a first toner. The first toner includes at least two fluorochromes which have a fluorescence peak in a wavelength range different from one another. A second image forming unit is configured to form a second image on the sheet using a second toner. The second toner includes a visible colored pigment. A softening point temperature of the first toner, as measured by differential scanning calorimetry, is higher than a softening point temperature of the second toner, as measured by differential scanning calorimetry.Type: GrantFiled: December 11, 2018Date of Patent: April 14, 2020Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Tsutomu Katsumata
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Patent number: 10591829Abstract: A toner according to an embodiment includes a colorant, a binder resin, and an ester wax. The colorant, the binder resin and the ester wax form a toner particle. The ester wax contains two or more ester compounds represented by the general formula R1COOR2, where R1 and R2 each independently is an alkyl group. The total number of carbon atoms of R1 and R2 is in a range from 31 to 53. The two or more ester compounds have different number of carbon atoms from each other.Type: GrantFiled: March 19, 2018Date of Patent: March 17, 2020Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Tsutomu Katsumata
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Publication number: 20190243273Abstract: An image forming apparatus includes a first image forming unit for forming a first image on a sheet using a first toner. The first toner includes at least two fluorochromes which have a fluorescence peak in a wavelength range different from one another. A second image forming unit is configured to form a second image on the sheet using a second toner. The second toner includes a visible colored pigment. A softening point temperature of the first toner, as measured by differential scanning calorimetry, is higher than a softening point temperature of the second toner, as measured by differential scanning calorimetry.Type: ApplicationFiled: February 6, 2018Publication date: August 8, 2019Inventor: Tsutomu KATSUMATA
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Publication number: 20190243274Abstract: An image forming apparatus includes a first image forming unit for forming a first image on a sheet using a first toner. The first toner includes at least two fluorochromes which have a fluorescence peak in a wavelength range different from one another. A second image forming unit is configured to form a second image on the sheet using a second toner. The second toner includes a visible colored pigment. A softening point temperature of the first toner, as measured by differential scanning calorimetry, is higher than a softening point temperature of the second toner, as measured by differential scanning calorimetry.Type: ApplicationFiled: December 11, 2018Publication date: August 8, 2019Inventor: Tsutomu KATSUMATA
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Patent number: 10197932Abstract: A toner comprising a coloring agent, an amorphous polyester, a crystalline polyester, ester wax comprising of multiple ester compounds, each having a carbon number selected from 32 to 54 and, hydrophobic silica having an average primary particle diameter of 8 to 35 nm, wherein when the ion intensity ratio of each ester compound having a different carbon number is expressed as percentage, the content (a) of the ester compound having a carbon number of (Cn) showing the maximum intensity ratio is from 20 to 55% by weight of the entire ester wax, and the sum (d) of the content (b) of the ester compound having a carbon number of (Cn?4) and the content (c) of the ester compound having a carbon number of (Cn?2) satisfies the following formula: 0.619?d/a?0.783.Type: GrantFiled: April 8, 2015Date of Patent: February 5, 2019Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Tsutomu Katsumata, Koichi Kuroyama
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Patent number: 10078284Abstract: A developer having low-temperature fixability and storage stability, and capable of prolonging the service life is provided. A toner includes a coloring agent, an amorphous polyester, a crystal line polyester, ester wax containing multiple ester compounds, each having a carbon number selected from 32 to 54, and hydrophobic silica having an average primary particle diameter of 8 to 35 nm. When the ion intensity ratio of each ester compound having a different carbon number is expressed as percentage, the content (a) of the ester compound having a carbon number of (Cn) showing the maximum intensity ratio is from 20 to 55% by weight of the entire ester wax, the sum (g) of the content (e) of the ester compound having a carbon number of (Cn+2) and the content (f) of the ester compound having a carbon number of (Cn+4) satisfies the following formula: 0.065?g/a?0.200.Type: GrantFiled: August 31, 2017Date of Patent: September 18, 2018Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Koichi Kuroyama, Tsutomu Katsumata
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Publication number: 20180210360Abstract: A toner according to an embodiment includes a colorant, a binder resin, and an ester wax. The colorant, the binder resin and the ester wax form a toner particle. The ester wax contains two or more ester compounds represented by the general formula R1COOR2, where R1 and R2 each independently is an alkyl group. The total number of carbon atoms of R1 and R2 is in a range from 31 to 53. The two or more ester compounds have different number of carbon atoms from each other.Type: ApplicationFiled: March 19, 2018Publication date: July 26, 2018Inventor: Tsutomu KATSUMATA
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Patent number: 9921504Abstract: A toner according to an embodiment includes a colorant, a binder resin, and an ester wax. The colorant, the binder resin and the ester wax form a toner particle. The ester wax contains two or more ester compounds represented by the general formula R1COOR2, where R1 and R2 each independently is an alkyl group. The total number of carbon atoms of R1 and R2 is in a range from 31 to 53. The two or more ester compounds have different number of carbon atoms from each other.Type: GrantFiled: May 24, 2016Date of Patent: March 20, 2018Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Tsutomu Katsumata
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Publication number: 20170363983Abstract: A developer having low-temperature fixability and storage stability, and capable of prolonging the service life is provided. A toner includes a coloring agent, an amorphous polyester, a crystal line polyester, ester wax containing multiple ester compounds, each having a carbon number selected from 32 to 54, and hydrophobic silica having an average primary particle diameter of 8 to 35 nm. When the ion intensity ratio of each ester compound having a different carbon number is expressed as percentage, the content (a) of the ester compound having a carbon number of (Cn) showing the maximum intensity ratio is from 20 to 55% by weight of the entire ester wax, the sum (g) of the content (e) of the ester compound having a carbon number of (Cn+2) and the content (f) of the ester compound having a carbon number of (Cn+4) satisfies the following formula: 0.065?g/a?0.200.Type: ApplicationFiled: August 31, 2017Publication date: December 21, 2017Inventors: Koichi Kuroyama, Tsutomu Katsumata
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Patent number: 9785073Abstract: A developer having low-temperature fixability and storage stability, and capable of prolonging the service life is provided. A toner includes a coloring agent, an amorphous polyester, a crystal line polyester, ester wax containing multiple ester compounds, each having a carbon number selected from 32 to 54, and hydrophobic silica having an average primary particle diameter of 8 to 35 nm. When the ion intensity ratio of each ester compound having a different carbon number is expressed as percentage, the content (a) of the ester compound having a carbon number of (Cn) showing the maximum intensity ratio is from 20 to 55% by weight of the entire ester wax, the sum (g) of the content (e) of the ester compound having a carbon number of (Cn+2) and the content (f) of the ester compound having a carbon number of (Cn+4) satisfies the following formula: 0.065?g/a?0.200.Type: GrantFiled: April 8, 2015Date of Patent: October 10, 2017Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventors: Koichi Kuroyama, Tsutomu Katsumata
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Publication number: 20160370724Abstract: A toner according to an embodiment includes a colorant, a binder resin, and an ester wax. The colorant, the binder resin and the ester wax form a toner particle. The ester wax contains two or more ester compounds represented by the general formula R1COOR2, where R1 and R2 each independently is an alkyl group. The total number of carbon atoms of R1 and R2 is in a range from 31 to 53. The two or more ester compounds have different number of carbon atoms from each other.Type: ApplicationFiled: May 24, 2016Publication date: December 22, 2016Inventor: Tsutomu KATSUMATA
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Publication number: 20150309431Abstract: A toner comprising a coloring agent, an amorphous polyester, a crystalline polyester, ester wax comprising of multiple ester compounds, each having a carbon number selected from 32 to 54 and, hydrophobic silica having an average primary particle diameter of 8 to 35 nm, wherein when the ion intensity ratio of each ester compound having a different carbon number is expressed as percentage, the content (a) of the ester compound having a carbon number of (Cn) showing the maximum intensity ratio is from 20 to 55% by weight of the entire ester wax, and the sum (d) of the content (b) of the ester compound having a carbon number of (Cn?4) and the content (c) of the ester compound having a carbon number of (Cn?2) satisfies the following formula: 0.619?d/a?0.783.Type: ApplicationFiled: April 8, 2015Publication date: October 29, 2015Inventors: Tsutomu Katsumata, Koichi Kuroyama
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Publication number: 20150309435Abstract: A developer having low-temperature fixability and storage stability, and capable of prolonging the service life is provided. A toner includes a coloring agent, an amorphous polyester, a crystal line polyester, ester wax containing multiple ester compounds, each having a carbon number selected from 32 to 54, and hydrophobic silica having an average primary particle diameter of 8 to 35 nm. When the ion intensity ratio of each ester compound having a different carbon number is expressed as percentage, the content (a) of the ester compound having a carbon number of (Cn) showing the maximum intensity ratio is from 20 to 55% by weight of the entire ester wax, the sum (g) of the content (e) of the ester compound having a carbon number of (Cn+2) and the content (f) of the ester compound having a carbon number of (Cn+4) satisfies the following formula: 0.065?g/a?0.200.Type: ApplicationFiled: April 8, 2015Publication date: October 29, 2015Inventors: Koichi Kuroyama, Tsutomu Katsumata
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Patent number: 8302262Abstract: A hinge device of a plane monitor is capable of manually rotating a plane display in lateral horizontal direction, manually inclining (tilting, laying) in longitudinal direction, or manually adjusting the height in vertical direction, being simple in structure and easy in manual operation. The structure includes a mechanism for supporting a plane display in lower part, and rotating it manually in lateral horizontal direction, in which the rotary mechanism in the lateral horizontal direction includes horizontal rotary position holding means, and transmitting means for transmitting rotary motion in lateral horizontal direction of the plane display to the horizontal rotary position holding means.Type: GrantFiled: January 23, 2008Date of Patent: November 6, 2012Assignee: Simotec Inc.Inventors: Tsutomu Katsumata, Takayuki Kaneko
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Publication number: 20110281210Abstract: According to one embodiment, a developing agent includes a toner resin containing a coloring material, a binder resin, an ester wax and a crystalline polyester resin. The ester wax has an alkyl group with a carbon number of from 32 to 46, when an ion intensity ratio at each carbon number is expressed in terms of percentage, a content of an ester compound having a carbon number showing its maximum intensity ratio is from 20 to 55% by weight of the whole of the wax, and a content of ester compounds with a carbon number of not more than 38 is not more than 10% by weight of the whole of the wax. The ester wax has an endothermic peak measured by DSC of from 60 to 75° C. The crystalline polyester resin has an endothermic peak measured by DSC of from 90 to 110° C.Type: ApplicationFiled: May 2, 2011Publication date: November 17, 2011Applicants: TOSHIBA TEC KABUSHIKI KAISHA, KABUSHIKI KAISHA TOSHIBAInventor: Tsutomu Katsumata