Patents by Inventor Yasushi Takatori
Yasushi Takatori 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: 5006864Abstract: An information read-out and recording apparatus includes an optical information read-out device for converting optical information into electrical information signals. A serial-input/parallel-output shift register stores information signals from the optical information read-out device and a latch circuit stores information from the shift register for supply to a recording device. The recording device records on a recording medium in accordance with the output of the latch circuit, which parallelly stores the contents of the shift register after a predetermined number of bits of information have been serially stored in the shift register.Type: GrantFiled: April 11, 1990Date of Patent: April 9, 1991Assignee: Canon Kabushiki KaishaInventors: Naoki Ayata, Yoshiaki Shirato, Yasushi Takatori, Mitsuaki Seki
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Patent number: 4707705Abstract: A device for recording comprising ejecting a liquid recording medium by heat energy which comprises a recording head composed of a discharging orifice for ejecting the liquid recording medium in a form of droplets, an inlet for introducing the liquid recording medium, a liquid chamber for holding the liquid recording medium, and a heating element for applying heat energy to the liquid recording medium in the liquid chamber, and a means for applying voltage pulse to control heating by the heating element, the distance between the surface of the heating element and the liquid recording medium being not more than 100 microns.Type: GrantFiled: March 24, 1986Date of Patent: November 17, 1987Assignee: Canon Kabushiki KaishaInventors: Toshitami Hara, Yasushi Sato, Yasushi Takatori, Yoshiaki Shirato
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Patent number: 4520373Abstract: This invention discloses a recording apparatus having at least transistors, gates and a latch circuit for driving plural heating elements, and also discloses a recording head in which a conductive member is connected electrically to heating elements.Type: GrantFiled: March 3, 1983Date of Patent: May 28, 1985Assignee: Canon Kabushiki KaishaInventors: Naoki Ayata, Yoshiaki Shirato, Yasushi Takatori, Mitsuaki Seki
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Patent number: 4499480Abstract: A liquid jet recording device comprises a liquid discharging portion, a driving control portion, a connecting wiring portion and a matrix wiring portion, and these are mounted on one substrate. The liquid jet recording device preferably has a substantially uniform roughness at the peripheral surfaces of the orifices of a value of 0.5.mu. or less.Type: GrantFiled: September 22, 1982Date of Patent: February 12, 1985Assignee: Canon Kabushiki KaishaInventors: Yasushi Takatori, Yasuhiro Yano, Yoshifumi Hattori
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Patent number: 4463359Abstract: This invention provides a method of and apparatus for emitting a droplet from an orifice by generating a bubble in a small liquid chamber in response to a droplet generating instruction. The method and apparatus are particularly characterized having gradual contraction of the bubble to prevent excessive recession of the orifice in the liquid chamber which recession would hinder subsequent droplet generation.For achieving the above-mentioned functions the droplet generating apparatus, or the droplet emitting head, is provided with a structure which allows effective generation and annihilation of the bubble. The present invention also provides a novel apparatus having emission heads in a staggered block arrangement for improving alignment density of the devices and elements and time-division drive circuitry.Type: GrantFiled: March 24, 1980Date of Patent: July 31, 1984Assignee: Canon Kabushiki KaishaInventors: Naoki Ayata, Yoshiaki Shirato, Yasushi Takatori, Mitsuaki Seki
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Patent number: 4459600Abstract: A liquid jet recording device comprises: a recording head having liquid discharging orifice for discharging liquid in a predetermined direction, a heat generating member, a heat acting zone where heat energy generated from the heat generating member acts on the liquid, and liquid feeding path for feeding the liquid to the heat acting zone; and drive signal feeding means for generating drive signals to drive said heat generating member to discharge the liquid in the predetermined direction, wherein the direction of the liquid flowing into said heat acting zone from said liquid feeding path differs from the direction of the liquid flowing out of said heat acting zone toward said liquid discharging orifice.Type: GrantFiled: November 25, 1981Date of Patent: July 10, 1984Assignee: Canon Kabushiki KaishaInventors: Yasushi Sato, Yasushi Takatori, Toshitami Hara, Yoshiaki Shirato
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Patent number: 4458256Abstract: An ink jet recording apparatus comprises actuating portions and lead electrodes for conducting current. The lead electrodes are wired in such a manner that a conductive member is disposed on a surface which is at a side where the ink droplets are ejected and said conductive member is a part of said lead electrode, or one actuating portion is provided with a plurality of lead electrodes, and these lead electrodes are led, substantially in parallel, to terminals which are located at a side opposite to the ejection port with respect to the actuating portion, or one chamber is provided with a plurality of actuating portions which are separated from one another, and lead electrodes connected to the actuating portions are led, substantially in parallel, to terminals which are located at a side opposite to the ejection port with respect to the actuating portion, or the actuating portion is disposed on a conductive member intervened with an insulating layer and the conductive member is a part of the lead electrode.Type: GrantFiled: April 12, 1982Date of Patent: July 3, 1984Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Shirato, Yasushi Takatori, Toshitami Hara, Yukuo Nishimura, Michiko Takahashi
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Patent number: 4392907Abstract: A method for producing a recording head for ejecting a recording liquid in an action chamber from an orifice connected with said action chamber in a state of small droplets and depositing at least a part of said droplets onto a recording surface to achieve recording, said method comprising a step X of forming a member a provided with a perforation for constituting said action chamber, a step Y of adjoining an end aperture of said perforation to another member b constituting an intermediate supply chamber of said liquid, and a step Z of attaching to said member c another member c for forming a slit in the vicinity of the other end aperture of said perforation.Type: GrantFiled: October 7, 1981Date of Patent: July 12, 1983Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Shirato, Yasushi Takatori, Toshitami Hara, Yukuo Nishimura, Michiko Takahashi
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Patent number: 4392141Abstract: An image forming method comprises a first process step of introducing a thermal or electrical information into a recording medium as an input thereto, and converting said information into an absorption pattern of radiation rays, the wavelength of which ranges from a visible region to an infrared region; and a second process step of effecting irradiation of the radiation rays to said recording medium to carry out the radiation heating.Type: GrantFiled: May 14, 1981Date of Patent: July 5, 1983Assignee: Canon Kabushiki KaishaInventors: Eiichi Inoue, Yasushi Takatori, Masahiro Haruta
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Patent number: 4380771Abstract: An ink jet recording process carrying out color printing by using plural inks of various colors and an ink jet recording head which comprises: plural orifices for each of color inks; common liquid chambers, each chamber being common to said orifices for the same color ink; and a plurality of long and thin liquid chambers communicative with said orifices, said each common chamber corresponding to the plural orifices possessing means for forming flying ink droplets, length of the liquid chamber varying for different color inks, is characterized in that printing is carried out by using plural color inks, each having an adjusted viscosity so that the loss of head in-friction inside the liquid chamber is substantially equal with regard to each of color inks.Type: GrantFiled: June 23, 1981Date of Patent: April 19, 1983Assignee: Canon Kabushiki KaishaInventor: Yasushi Takatori
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Patent number: 4376945Abstract: A device for recording comprising ejecting a liquid recording medium by heat energy which comprises a recording head composed of a discharging orifice for ejecting the liquid recording medium in a form of droplets, an inlet for introducing the liquid recording medium, a liquid chamber for holding the liquid recording medium, and a heating element for applying heat energy to the liquid recording medium in the liquid chamber, and a means for applying voltage pulse to control heating by the heating element, the distance between the surface of the heating element and the liquid recording medium being not more than 100 microns.Type: GrantFiled: May 27, 1981Date of Patent: March 15, 1983Assignee: Canon Kabushiki KaishaInventors: Toshitami Hara, Yasushi Sato, Yasushi Takatori, Yoshiaki Shirato
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Patent number: 4368476Abstract: An ink jet recording head of the type in which ink droplets are jetted from the orifice of the head toward a recording material to effect recording on the surface of the recording material with said ink droplets, said recording head characterized in that at least the area surrounding the jet orifice is treated with a compound of general formula: R.Si.X.sub.3 wherein, R is a fluorine containing group selected from fluoroalkyl, fluoroaryl, fluorocycloalkyl, fluoroalkaryl and fluoroalkylaryl, each having 1 to 20 carbon atoms, and the ratio in number of fluorines: other elements in said fluorine containing group being not less than 1:1, and X is halogen, a hydrolyzable group selected from alkoxy, alkyl and acyloxy each having 1 to 5 carbon atoms, or hyroxyl.Type: GrantFiled: December 3, 1980Date of Patent: January 11, 1983Assignee: Canon Kabushiki KaishaInventors: Haruo Uehara, Shigeyuki Matsumoto, Yasushi Takatori, Tokuya Ohta, Yohji Matsufuji
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Patent number: 4345262Abstract: An ink jet recording method which comprises contacting or bringing closer an electro-thermal transducer with or to a recording liquid in an operating chamber having a discharge orifice, introducing into the electrothermal transducer an input pulse signal with its pulse width being in a range of from 0.1 .mu.sec. to 500 .mu.sec., said input pulse signal being introduced in such a manner that its input cycle becomes at least three times as large as said pulse width, discharging and sputtering said recording liquid from said discharge orifice in the form of fine droplet in accordance with operating force developed within said operating chamber, and effecting image recording on the surface of a recording medium with the liquid droplets.Type: GrantFiled: February 7, 1980Date of Patent: August 17, 1982Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Shirato, Yasushi Takatori, Toshitami Hara, Yukuo Nishimura, Michiko Takahashi
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Patent number: 4339762Abstract: A liquid jet recording method capable of recording gradation comprises (a) filling with a liquid a conduit having, at the end, an orifice for ejecting and projecting a liquid droplet to a predetermined direction, said conduit being provided with a heat actuating portion generating a force for ejecting the liquid droplet by applying heat energy to the liquid to cause an abrupt state change, the heat actuating portion including an electrothermal transducer having a heat generating portion which has such a structure that the degree of heat supply is different from position to position on the heating surface, and (b) controlling the strength of an input electric signal corresponding to the gradation of an image to be recorded, thereby controlling the distribution of degree of heat supplying at the heating surface.Type: GrantFiled: March 31, 1980Date of Patent: July 13, 1982Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Shirato, Yasushi Takatori, Toshitami Hara, Yukuo Nishimura, Michiko Takahashi
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Patent number: 4335389Abstract: A liquid droplet ejecting recording head comprises liquid ejecting portion including an orifice for ejecting liquid droplets and a heat actuating portion communicated with the orifice, and an electrothermal transducer as a means for generating heat energy, the heat energy acting on the liquid at the heat actuating portion for ejecting liquid droplets, characterized in that the part contacting the liquid of the heat actuating portion is made of a material whose .DELTA.W is not more than one-tenth of 1 mg/cm.sup.2 where .DELTA.W is a decrement weight of the material per unit area in mg/cm.sup.2 at a time "t", when subjected to a weight decreasing test, the "t" being a time at which .DELTA.W(Al) is 1 mg/cm.sup.2 where .DELTA.W(Al) is a decrement weight of an aluminum plate of 99.9% in purity per unit area of the tested surface when subjected to the weight decreasing test.Type: GrantFiled: March 24, 1980Date of Patent: June 15, 1982Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Shirato, Yasushi Takatori, Toshitami Hara, Yukuo Nishimura, Michiko Takahashi
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Patent number: 4334234Abstract: A liquid droplet forming apparatus is improved by selecting particular conditions concerning total opening area of communicating ports, an area of the region having the communicating ports; various lengths in the direction along the axis of the actuating chamber; and volumes of various portions in the actuating chambers and the common liquid chamber.Type: GrantFiled: March 28, 1980Date of Patent: June 8, 1982Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Shirato, Yasushi Takatori, Toshitami Hara, Yukuo Nishimura, Michiko Takahashi
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Patent number: 4330787Abstract: A liquid jet recording device comprises: a recording head having liquid discharging orifice for discharging liquid in a predetermined direction, a heat generating member, a heat acting zone where heat energy generated from the heat generating member acts on the liquid, and liquid feeding path for feeding the liquid to the heat acting zone; and drive signal feeding means for generating drive signals to drive said heat generating member to discharge the liquid in the predetermined direction, wherein the direction of the liquid flowing into said heat acting zone from said liquid feeding path differs from the direction of the liquid flowing out of said heat acting zone toward said liquid discharging orifice.Type: GrantFiled: October 15, 1979Date of Patent: May 18, 1982Assignee: Canon Kabushiki KaishaInventors: Yasushi Sato, Yasushi Takatori, Toshitami Hara, Yoshiaki Shirato
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Patent number: 4317124Abstract: An ink jet recording apparatus for ejecting a recording liquid in the form of droplets from an orifice connecting to a chamber containing said liquid and depositing at least of said droplets onto a recording material to perform recording, comprising a liquid intake means in the vicinity of said orifice.Type: GrantFiled: February 1, 1980Date of Patent: February 23, 1982Assignee: Canon Kabushiki KaishaInventors: Yoshiaki Shirato, Yasushi Takatori, Toshitami Hara, Yukuo Nishimura, Michiko Takahashi
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Patent number: 4296421Abstract: A device for recording comprising ejecting a liquid recording medium by heat energy which comprises a recording head composed of a discharging orifice for ejecting the liquid recording medium in a form of droplets, an inlet for introducing the liquid recording medium, a liquid chamber for holding the liquid recording medium, and a heating element for applying heat energy to the liquid recording medium in the liquid chamber, and a means for applying voltage pulse to control heating by the heating element, the distance between the surface of the heating element and the liquid recording medium being not more that 100 microns.Type: GrantFiled: October 24, 1979Date of Patent: October 20, 1981Assignee: Canon Kabushiki KaishaInventors: Toshitami Hara, Yashushi Sato, Yasushi Takatori, Yoshiaki Shirato
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Patent number: 4263601Abstract: The present invention relates to an image forming process and an apparatus therefor for forming an image with liquid ink in response to output information from a facsimile or a computer, or optical information.In the present invention there is employed a screen member provided with a plurality of through holes and control electrodes respectively provided in the vicinity of said through holes, and voltages corresponding to the image information signals are applied to said control electrodes to selectively introduce electroconductive liquid ink into said through holes thereby forming an image, said image then being transferred onto or made to fly toward a recording material such as paper.Type: GrantFiled: September 25, 1978Date of Patent: April 21, 1981Assignee: Canon Kabushiki KaishaInventors: Yukuo Nishimura, Masahiro Haruta, Yasushi Takatori, Katsuhiko Nishide