Patents by Inventor Atsushi Nishioka
Atsushi Nishioka 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: 6554393Abstract: To propose an ink-jet recording apparatus having a small-sized compact driving mechanism for driving an ink suction pump, an elastic blade for wiping a recording head, and a locking arm for locking a carriage. An ink suction pump 8, a locking arm for locking a carriage, and an elastic blade for wiping a recording head are driven by a driving mechanism for common use. The driving mechanism transmits the torque of a single motor via a driving gear to the ink suction pump. Moreover, the driving mechanism also converts the rotary motion into the locking movement of the elastic blade via a rotary cam plate frictionally engaging with the driving gear and further converts the locking movement of the elastic blade to the locking movement of the locking arm. The ink-jet recording apparatus can be made small-sized and compact by driving each driven portion using the driving mechanism for common use.Type: GrantFiled: February 15, 2001Date of Patent: April 29, 2003Assignee: Seiko Epson CorporationInventors: Satoshi Iwaya, Atsushi Nishioka
-
Patent number: 6511150Abstract: An ink jet printer capable of performing an appropriate initialization process when power is turned on again when a cleaning process is in progress when the power is suddenly interrupted by a power failure or disconnection of the power cord. The present invention comprises a maintenance unit for an ink jet head; a memory 103; a power interruption detector 105 for detecting interruption of power supply to the printer; a storage controller 100 for storing a current operating status of the maintenance unit to the memory 103 when the power interruption detector 105 detects interruption of the power supply; and an initialization controller 100 for reading the maintenance unit operating status stored to the memory 103 when printer power is turned on, and performing different initialization operations according to the operating status.Type: GrantFiled: September 28, 1999Date of Patent: January 28, 2003Assignee: Seiko Epson CorporationInventors: Satoshi Yoda, Atsushi Nishioka, Mitsuaki Teradaira
-
Patent number: 6435650Abstract: An ink jet recording apparatus with a carriage lock mechanism is provided with a timer for counting a waiting time at a home position when detecting the return of a carriage to the home position HP. When this waiting time has reached or exceeded a reference time, a carriage lock mechanism is driven to lock the carriage. A time (reference time) taken while the carriage is returned to the home position and is then locked can be set and/or changed to be an optimum time according to the configuration of use of the recording apparatus through a reference time setting part.Type: GrantFiled: August 21, 2001Date of Patent: August 20, 2002Assignee: Seiko Epson CorporationInventors: Atsushi Nishioka, Naoki Kobayashi
-
Publication number: 20020095485Abstract: A software management system for processing, maintaining improved reliability, a software delivered on a wide-area network. A center server 1 includes a script 12 describing the operation of the application 11, and a fault countermeasure means 13 for coping with the occurrence of a fault. A local server 3 includes a network-directed language execution environment 31, a remote management means 32 for downloading or deleting the application, a script interpretation means 33, and a highly reliable means 34 for recording event data that occur while the application is being executed, for managing the data when the fault has occurred, and for executing the restoration processing.Type: ApplicationFiled: January 16, 2001Publication date: July 18, 2002Inventors: Takaaki Maekawa, Atsushi Nishioka
-
Patent number: 6364448Abstract: An ink jet printer reliably prevents printing defects resulting from bubbles remaining in the ink path after ink priming. An ink suction mechanism of the ink jet printer performs a post-priming head recovery process for suctioning ink from the nozzles when an hour passes after the ink priming process. This process suctions a large volume of ink from the ink nozzles, and can thus reliably expel bubbles from the ink path. By performing this process at a sufficiently long specific period of time after ink priming, enough time has elapsed for bubbles that are formed by the ink path filter during ink priming and collect in offsets in the ink path to grow to a size where the bubbles protrude from the offset into the ink path. Bubbles that are thus freed into the ink path can therefore be reliably expelled from the nozzles. Printing defects resulting from bubbles left by ink priming can thus be reliably prevented.Type: GrantFiled: July 13, 1999Date of Patent: April 2, 2002Assignee: Seiko Epson CorporationInventors: Atsushi Nishioka, Yukihiro Hanaoka, Satoshi Yoda
-
Publication number: 20020024553Abstract: An ink jet recording apparatus with a carriage lock mechanism is provided with a timer for counting a waiting time at a home position when detecting the return of a carriage to the home position HP. When this waiting time has reached or exceeded a reference time, a carriage lock mechanism is driven to lock the carriage. A time (reference time) taken while the carriage is returned to the home position and is then locked can be set and/or changed to be an optimum time according to the configuration of use of the recording apparatus through a reference time setting part.Type: ApplicationFiled: August 21, 2001Publication date: February 28, 2002Applicant: Seiko Epson CorporationInventors: Atsushi Nishioka, Naoki Kobayashi
-
Publication number: 20020018094Abstract: The invention features a method and apparatus for an ink jet recording apparatus in which a carriage lock is provided. When a return of the carriage to the home position HP is detected, the waiting time at the home position HP is counted. When this waiting time has reached a predetermined time, a carriage lock is engaged. When the carriage lock is engaged immediately after the carriage returns to the home position HP, the frequency of the carriage lock is reduced, thus enhancing its durability. Further, there is no need of disengaging the carriage lock at a restart of the printing, thus improving responsiveness at the restart of the printing.Type: ApplicationFiled: June 8, 2001Publication date: February 14, 2002Applicant: Seiko Epson CorporationInventors: Satoshi Iwaya, Atsushi Nishioka, Naoki Kobayashi
-
Publication number: 20020001011Abstract: An ink jet printer reliably prevents printing defects resulting from bubbles remaining in the ink path after ink priming. An ink suction mechanism of the ink jet printer performs a post-priming head recovery process for suctioning ink from the nozzles when an hour passes after the ink priming process. This process suctions a large volume of ink from the ink nozzles, and can thus reliably expel bubbles from the ink path. By performing this process at a sufficiently long specific period of time after ink priming, enough time has elapsed for bubbles that are formed by the ink path filter during ink priming and collect in offsets in the ink path to grow to a size where the bubbles protrude from the offset into the ink path. Bubbles that are thus freed into the ink path can therefore be reliably expelled from the nozzles. Printing defects resulting from bubbles left by ink priming can thus be reliably prevented.Type: ApplicationFiled: July 13, 1999Publication date: January 3, 2002Inventors: ATSUSHI NISHIOKA, YUKIHIRO HANAOKA, SATOSHI YODA
-
Publication number: 20010055043Abstract: A cleaning device for cleaning a nozzle surface of an ink-jet head has a first wiping member for wiping a nozzle surface of an ink-jet head and a second wiping member for wiping the first wiping member, and a lever driving mechanism for moving the first wiping member between a retracted position located away from the nozzle surface and a wiping position for wiping the nozzle surface. The second wiping member is formed of an elastic body and is arranged within a moving path of the first wiping member, so that it contacts with the first wiping member for only a limited period, whereby reducing in wear of these wiping members.Type: ApplicationFiled: April 5, 2001Publication date: December 27, 2001Inventors: Hiroshi Wanibuchi, Atsushi Nishioka, Toshiyuki Sasaki
-
Publication number: 20010028373Abstract: To propose an ink-jet recording apparatus having a small-sized compact driving mechanism for driving an ink suction pump, an elastic blade for wiping a recording head, and a locking arm for locking a carriage. An ink suction pump 8, a locking arm for locking a carriage, and an elastic blade for wiping a recording head are driven by a driving mechanism for common use. The driving mechanism transmits the torque of a single motor via a driving gear to the ink suction pump. Moreover, the driving mechanism also converts the rotary motion into the locking movement of the elastic blade via a rotary cam plate frictionally engaging with the driving gear and further converts the locking movement of the elastic blade to the locking movement of the locking arm. The ink-jet recording apparatus can be made small-sized and compact by driving each driven portion using the driving mechanism for common use.Type: ApplicationFiled: February 15, 2001Publication date: October 11, 2001Applicant: Seiko Epson CorporationInventors: Satoshi Iwaya, Atsushi Nishioka
-
Patent number: 6281911Abstract: An ink cartridge 2 with a waste ink absorbing function includes a division room 70 formed in the interior portion of a cartridge case 30 for storing a waste ink absorbing member 20, and a plastic film 60 forming at least part of the division room 70. By cutting or peeling off the plastic film 60, the waste ink absorbing member 20 stored within can be replaced, which simplifies the replacement of the waste ink absorbing member 20. After replacement, the plastic film 60 may be mounted onto the cartridge case 30. Use of the plastic film is economical when compared with a structure in which a plastic plate is mounted onto a cartridge case. Also, the ink cartridge 2 can be reduced in size and weight as a whole.Type: GrantFiled: May 28, 1999Date of Patent: August 28, 2001Assignee: Seiko Epson CorporationInventors: Chiyoshige Nakazawa, Manabu Yamada, Yukihiro Hanaoka, Atsushi Nishioka, Katsuko Aoki
-
Patent number: 6264304Abstract: The invention features a method and apparatus for an ink jet recording apparatus in which a carriage lock is provided. When a return of the carriage to the home position HP is detected, the waiting time at the home position HP is counted. When this waiting time has reached a predetermined time, a carriage lock is engaged. When the carriage lock is engaged immediately after the carriage returns to the home position HP, the frequency of the carriage lock is reduced, thus enhancing its durability. Further, there is no need of disengaging the carriage lock at a restart of the printing, thus improving responsiveness at the restart of the printing.Type: GrantFiled: July 15, 1999Date of Patent: July 24, 2001Assignee: Seiko Epson CorporationInventors: Satoshi Iwaya, Atsushi Nishioka, Naoki Kobayashi
-
Patent number: 6264314Abstract: An ink cartridge employable for an ink jet type recording apparatus includes a case (4) having a front plate (4a) with at least one position determining hole (4h/4g) formed therein. An ink bag (1) containing a supply of ink is received in the case (4) in a manner such that the position determining hole (4h/4g) allows the insertion of a position determining shaft (16/17) projecting from an inner end of a cartridge holder (90) through the position determining hole (4h/4g) to guide and properly locate the ink cartridge (80) relative to the cartridge holder (90) without establishing communication between the ink bag (1) and the position determining shaft (16/17).Type: GrantFiled: September 8, 1997Date of Patent: July 24, 2001Assignee: Seiko Epson CorporationInventors: Seiji Mochizuki, Kazuhisa Kawakami, Masahiro Isono, Yukihiro Hanaoka, Atsushi Nishioka
-
Patent number: 6220692Abstract: To propose an ink-jet recording apparatus having a small-sized compact driving mechanism for driving an ink suction pump, an elastic blade for wiping a recording head, and a locking arm for locking a carriage. An ink suction pump 8, a locking arm for locking a carriage, and an elastic blade for wiping a recording head are driven by a driving mechanism for common use. The driving mechanism transmits the torque of a single motor via a driving gear to the ink suction pump. Moreover, the driving mechanism also converts the rotary motion into the locking movement of the elastic blade via a rotary cam plate frictionally engaging with the driving gear and further converts the locking movement of the elastic blade to the locking movement of the locking arm. The ink-jet recording apparatus can be made small-sized and compact by driving each driven portion using the driving mechanism for common use.Type: GrantFiled: July 15, 1999Date of Patent: April 24, 2001Assignee: Seiko Epson CorporationInventors: Satoshi Iwaya, Atsushi Nishioka
-
Patent number: 6203295Abstract: A pump 15 disposed in an ink-jet recording device has flexible tube 103 and guide member 106 whereon a prescribed part of the tube is mounted. Roller 105, of which there is at least one and which pressurizes and deforms tube 103, is supported by lever 107 such that it pressurizes the tube when it rotates in the forward direction and releases the pressure on the tube when it rotates in the reverse direction. This lever 107 is urged by spring 108 in the direction that presses the roller against the tube.Type: GrantFiled: April 11, 2000Date of Patent: March 20, 2001Assignee: Seiko Epson CorporationInventor: Atsushi Nishioka
-
Patent number: 6193362Abstract: A connection unit for an inkjet head whereby an ink supply passage is formed by bonding an inkjet head component to a case member such that ink ejection problems do not occur, ink does not leak, reliability is high, and manufacturing is simple. A bonding channel 218e encircling an ink supply opening 218h is provided between the bonding surfaces of the head component 210 and head case 218. Adhesive is then injected from an adhesive injection opening 218d to fill the bonding channel to an vent hole 218f.Type: GrantFiled: March 12, 1999Date of Patent: February 27, 2001Assignee: Seiko Epson CorporationInventors: Toshio Nakata, Atsushi Nishioka, Yukihiro Hanaoka, Kazuhiko Sato, Tsutomu Yamazaki
-
Patent number: 6082977Abstract: A pump 15 disposed in an ink-jet recording device has flexible tube 103 and guide member 106 whereon a prescribed part of the tube is mounted. Roller 105, of which there is at least one and which pressurizes and deforms tube 103, is supported by lever 107 such that it pressurizes the tube when it rotates in the forward direction and releases the pressure on the tube when it rotates in the reverse direction. This lever 107 is urged by spring 108 in the direction that presses the roller against the tube.Type: GrantFiled: July 9, 1997Date of Patent: July 4, 2000Assignee: Seiko Epson CorporationInventor: Atsushi Nishioka
-
Patent number: 6074036Abstract: To provide a highly reliable and easy-to-manufacture ink jet head connection unit, in which ink supply paths are formed by gluing a substrate on which head component is formed to other components, that is free of ink ejection failure and ink leakage. A head component and case component 240 equipped with opening 241 on the bottom of which supply port 257 for supplying ink to head component 210 and concave area 243 to be filled with an adhesive are formed, are provided. Space 248 to be filled with an adhesive for joining head component 210 and case component 240 when case component 240 and head component 210 are coupled, is formed inside the joined case.Type: GrantFiled: January 21, 1999Date of Patent: June 13, 2000Assignee: Seiko Epson CorporationInventors: Atsushi Nishioka, Yukihiro Hanaoka, Kazuhiko Sato, Tsutomu Yamazaki
-
Patent number: 5997125Abstract: To provide a highly reliable and easy-to-manufacture ink jet head connection unit, in which ink supply paths are formed by gluing a substrate on which head component is formed to other components, that is free of ink ejection failure and ink leakage. A head component and case component 240 equipped with opening 241 on the bottom of which supply port 257 for supplying ink to head component 210 and concave area 243 to be filled with an adhesive are formed, are provided. Space 248 to be filled with an adhesive for joining head component 210 and case component 240 when case component 240 and head component 210 are coupled, is formed inside the joined case.Type: GrantFiled: January 22, 1999Date of Patent: December 7, 1999Assignee: Seiko Epson CorporationInventors: Atsushi Nishioka, Yukihiro Hanaoka, Kazuhiko Sato, Tsutomu Yamazaki
-
Patent number: 5963239Abstract: An ink jet recording apparatus and printer whereby air bubbles in the ink supply path are easily expelled even where a stagnation point or flow boundary is formed within the ink jet recording apparatus in which air bubbles tend to collect inside the ink supply path. Even when the air bubbles are not completely expelled, occlusion of the ink supply path by an air bubble is also prevented. In particular, the ink jet recording apparatus includes a capillary member which defines plural capillary paths disposed within the ink supply path upstream of the stagnation point or flow boundary occurring at the connection of the recording head to ink supply tube. These capillary paths are separated a distance away from the flow boundary and included angled walls and cross sections to enable fractionation of larger, potentially ink occluding bubbles.Type: GrantFiled: March 14, 1997Date of Patent: October 5, 1999Assignee: Seiko Epson CorporationInventors: Atsushi Nishioka, Yukihiro Hanaoka, Kazuhiko Sato, Tsutomu Yamazaki