Patents by Inventor Hajime Kishida
Hajime Kishida 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: 6471346Abstract: An ink container has a liquid retaining member accommodation chamber for accommodating a liquid retaining member, which is in fluid communication with an ink accommodation chamber for accommodating ink through a fluid communication path. An ink introduction groove extends substantially along an entirety of an inner corner portion of a bottom wall of the ink accommodation chamber to the fluid communication path.Type: GrantFiled: June 27, 2001Date of Patent: October 29, 2002Assignee: Canon Kabushiki KaishaInventors: Hajime Kishida, Ken Tsuchii
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Patent number: 6416173Abstract: A capped liquid container comprises a liquid container for retaining liquid, having a supply opening formed for supplying the liquid to the recording devices of an ink jet recording apparatus, and a cap fixed to the liquid container for closing the supply opening, the cap being removed from the liquid container by rotating the cap. This cap is formed by a rigid member and an elastic member, and the elastic member is provided with a first engagement portion, while a second engagement portion is formed on the edge circumference of the supply opening to engage with the first engagement portion. Then, the first engagement portion and the second engagement portion are sealingly pressed together, and at the same time, a part of the rigid member of the cap is fixed to the liquid container.Type: GrantFiled: February 18, 1998Date of Patent: July 9, 2002Assignee: Canon Kabushiki KaishaInventors: Hajime Kishida, Kenta Udagawa, Osamu Sato
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Patent number: 6360793Abstract: A filling apparatus for filling receiving vessels with compressed gas lowers the temperature of the compressed gas in response to the filling pressure of the receiving vessel. As an internal pressure within the receiving vessel approaches a value indicative of a filled vessel, the temperature of the compressed gas is reduced to counter the effect of heat caused by increasing pressure within the vessel. The temperature of the compressed gas is reduced by slowing the compressor and allowing the gas to dwell for a longer period within a heat exchanger between stages of compression. In addition, the temperature of the compressed gas is reduced by increasing the efficacy of the heat exchanger such as by increasing the rate of air flow over the heat exchanger. Accordingly, engine speed, fan speed and compressor speed each can be varied according to various arrangements of the filling apparatus to reduce the temperature of the compressed gases being introduced into a receiving vessel.Type: GrantFiled: February 8, 2000Date of Patent: March 26, 2002Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Hisayuki Sugano, Masami Saruta, Hajime Kishida
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Publication number: 20010043257Abstract: A capped liquid container comprises a liquid container for retaining liquid, having a supply opening formed for supplying the liquid to the recording devices of an ink jet recording apparatus, and a cap fixed to the liquid container for closing the supply opening, the cap being removed from the liquid container by rotating the cap. This cap is formed by a rigid member and an elastic member, and the elastic member is provided with first engagement means, and second engagement means is formed on the edge circumference of the supply opening to engage with the first engagement means. Then, the first engagement means and the second engagement means are pressed to be joined together, and at the same time, a part of the rigid member of the cap is fixed to the liquid container. With the structure thus arranged, the contact surface between the first and second engagement means produces the sealing effect, hence making it possible to materialize a capped liquid container having a high water tightness and air tightness.Type: ApplicationFiled: February 18, 1998Publication date: November 22, 2001Inventors: HAJIME KISHIDA, KENTA UDAGAWA, MAKOTO SATO
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Publication number: 20010035899Abstract: A liquid container includes a main body for accommodating liquid contributable to image formation; a liquid absorbing material, accommodated in said main body, for holding the liquid; a liquid supply port, in said main body, for supplying the liquid toward an ejection head for the image formation; an air vent for fluid communication between said main body and an ambience; wherein a projected surface is projected toward inside of said main body at a part of an inner surface of said main body adjacent said liquid supply port.Type: ApplicationFiled: June 27, 2001Publication date: November 1, 2001Inventors: Hajime Kishida, Ken Tsuchii
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Patent number: 6293660Abstract: A liquid container includes a main body for accommodating liquid contributable to image formation; a liquid absorbing material, accommodated in said main body, for holding the liquid; a liquid supply port, in said main body, for supplying the liquid toward an ejection head for the image formation; an air vent for fluid communication between said main body and an ambience; wherein a projected surface is projected toward inside of said main body at a part of an inner surface of said main body adjacent said liquid supply port.Type: GrantFiled: February 18, 1998Date of Patent: September 25, 2001Assignee: Canon Kabushiki KaishaInventors: Hajime Kishida, Ken Tsuchii
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Patent number: 6276786Abstract: A packaging structure of the present invention is provided for an ink tank having an ink supply port and an atmosphere communicating port. It has a seal member for sealing the ink supply port, a seal member for sealing the atmosphere communicating port, and an integrated covering member for integrally covering the ink tank having at least these seal members. A partial breakage of the covering member leads to open the atmosphere communicating port at first. Thus, the combination of the packaging structure and the ink tank is constructed so as to open the atmosphere communicating port at first with reliability. It is functionally required at the time of pulling out the ink tank from the package and also at the time of physical distribution without causing an ink leakage, regardless of the shape of the ink tank.Type: GrantFiled: February 28, 1997Date of Patent: August 21, 2001Assignee: Canon Kabushiki KaishaInventors: Masataka Eida, Kenji Ookawara, Hirofumi Kamitakahara, Hajime Kishida, Kazuhiro Nakajima
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Patent number: 6203148Abstract: A liquid container for an ink jet apparatus requires only one liquid preserving container for a single kind of liquid even when a plurality of ink jet recording elements are used and which can also be expected to improve the printing density and the printing speed. For this purpose, a plurality of liquid supplying portions are provided in a liquid container having a liquid containing portion containing therein a sponge or the like for holding a single kind of liquid, and a liquid supplying port for supplying the liquid to ink jet recording elements.Type: GrantFiled: July 28, 1997Date of Patent: March 20, 2001Assignee: Canon Kabushiki KaishaInventor: Hajime Kishida
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Patent number: 6145972Abstract: A container for containing liquid to be ejected. The container includes a negative pressure producing member accommodating chamber for accommodating a negative pressure producing member. The negative pressure producing member accommodating chamber is provided with an air vent for fluid communication with ambience and a liquid supply portion for supplying the liquid to a liquid ejecting head having ejection outlets. The container also includes a liquid containing chamber which is substantially hermetically sealed except for a fluid communication path through which the liquid containing chamber is in fluid communication with the negative pressure producing member accommodating chamber. A partition is provided for separating the negative pressure producing member accommodating chamber and the liquid containing chamber. The partition is provided with an ambience introduction path for introducing the ambience into the liquid containing chamber from the negative pressure producing member accommodating chamber.Type: GrantFiled: November 17, 1997Date of Patent: November 14, 2000Assignee: Canon Kabushiki KaishaInventors: Kenta Udagawa, Hajime Kishida, Osamu Sato, Ken Tsuchii, Kazuhiro Nakajima
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Patent number: 6120140Abstract: An ink supplying apparatus includes an ink flow passage connecting an ink storing portion for storing ink and an ejecting portion for ejecting the ink; a chamber disposed in the ink flow passage; a filter which divides the chamber into two spaces, one of which is provided with an ink entrance opening leading to the ink storing portion, and the other of which is provided with an ink exit opening leading to the ejecting portion; wherein the ink exit opening is disposed adjacent to the top wall of the chamber, with respect to gravity direction, and also, the ink exit opening is disposed above a level at which the ink entrance opening is disposed, with respect to direction.Type: GrantFiled: January 28, 1998Date of Patent: September 19, 2000Assignee: Canon Kabushiki KaishaInventors: Toshiaki Hirosawa, Hajime Kishida, Osamu Morita, Mineo Kaneko, Kiyomitsu Kudo
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Patent number: 5946014Abstract: An ink tank cartridge having ink-storing part for storing ink to be supplied to a recording head which ejects ink in droplets and being mountable to and demountable from a recording apparatus, the ink tank cartridge comprises a main body of a container constituting the ink-storing part; an ink-absorbent held in the main body of the container for storing the ink; an ink-supplying part for supplying the ink to the recording head; and an air communication part to communicate the interior of the main body of the container with the air, the air communication part having a large-diameter opening capable of opening the interior of the main body of the container to the outside and being provided with a plug member having a fine opening attachably to and detachably from the large-diameter opening.Type: GrantFiled: May 22, 1995Date of Patent: August 31, 1999Assignee: Canon Kabushiki KaishaInventors: Akihiko Shimomura, Hajime Kishida, Makoto Shioya, Osamu Sato, Shoji Shiba, Yoichi Taneya, Mariko Suzuki
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Patent number: 5713339Abstract: An apparatus for lean-burn control of an internal combustion engine, comprising: an exhaust pressure-sensor for measuring the exhaust pressure in the exhaust system of the internal combustion engine at least when the internal combustion engine is subjected to lean combustion; a decision means for determining whether misfiring occurs in the internal combustion engine, based on the measured exhaust pressure; and a control unit for controlling the fuel/air ratio of intake mixed gas introduced into the internal combustion engine, based on the determination of the occurrence of misfiring, thereby accurately and quickly detecting and preventing the occurrence of misfiring and achieving super-lean burn control.Type: GrantFiled: May 20, 1996Date of Patent: February 3, 1998Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Hajime Kishida, Tatsuji Ooba
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Patent number: 5048497Abstract: A number of embodiments of fuel injection systems using air/fuel injection and wherein the fuel is not delivered to the injection unit until after the injection valve is open so that fuel cannot flow back into the pressurized air system. In some embodiments, a single valve element and valve seat controls the flow of both fuel and air.Type: GrantFiled: February 22, 1990Date of Patent: September 17, 1991Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Hajime Kishida, Takeo Yoshida
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Patent number: 5004154Abstract: An accumulator type injection nozzle wherein a variable stop that is electrically actuated is provided for controlling the maximum degree of opening of the injection valve for controlling the amount of fuel discharged.Type: GrantFiled: October 16, 1989Date of Patent: April 2, 1991Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Takeo Yoshida, Hajime Kishida
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Patent number: 4899935Abstract: An accumulator type of fuel injection nozzle including an improved arrangement for slidably supporting the actuator end of the injection valve within the control chamber that controls the opening and closing of the injection valve. This is accomplished by providing a closure plate that has a large diameter bore that supports an enlarged diameter end portion of the injection valve. The bore is closed by a slidably supported supporting plate that has a smaller diameter bore which engages the control valve adjacent its larger diameter portion and slidably supports it.Type: GrantFiled: March 7, 1989Date of Patent: February 13, 1990Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Takeo Yoshida, Hajime Kishida
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Patent number: 4488519Abstract: An induction system for a four-cycle internal combustion engine that improves charging efficiency, power and torque at idle and low speed. A check valve is provided in the intake passage for precluding reverse flow under these running conditions. In addition, a plenum chamber is provided that communicates with the intake passage downstream of the check valve for improving power and torque throughout the entire load and speed range of the engine.Type: GrantFiled: May 13, 1982Date of Patent: December 18, 1984Assignee: Yamaha Hatsudoki Kabushiki KaishiInventor: Hajime Kishida
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Patent number: D391289Type: GrantFiled: April 11, 1997Date of Patent: February 24, 1998Assignee: Canon Kabushiki KaishaInventors: Manabu Inoue, Hajime Kishida, Osamu Sato
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Patent number: D392312Type: GrantFiled: April 11, 1997Date of Patent: March 17, 1998Assignee: Canon Kabushiki KaishaInventors: Manabu Inoue, Hajime Kishida, Osamu Sato
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Patent number: D400574Type: GrantFiled: April 11, 1997Date of Patent: November 3, 1998Assignee: Canon Kabushiki KaishaInventors: Manabu Inoue, Hajime Kishida, Osamu Sato