Patents by Inventor Eiji Kaneko
Eiji Kaneko 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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Publication number: 20100002197Abstract: A projector, that projects an image on a projection surface in accordance with an image signal, includes: an optical system that includes a light source and projects projection light representing the image; an optical sensor that receives the light from the projection surface; and an adjuster that carries out a first adjustment process of adjusting the brightness of the projection light in accordance with the output from the optical sensor before the light source illuminates.Type: ApplicationFiled: June 29, 2009Publication date: January 7, 2010Applicant: Seiko Epson CorporationInventor: Eiji Kaneko
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Publication number: 20070223471Abstract: A data processing device connected with a data supply device for performing predetermined data processing includes: a communication control unit for controlling communication with the data supply device; a data processing unit for performing the data processing based on input data received from the data supply device; and a device control unit for performing predetermined processing in correspondence with command data received from the data supply device based on the command data. The communication control unit receives the input data and the command data each of which is contained in a packet having a common fixed length from the data supply device. When an identification part at a predetermined position in the reception packet received from the data supply device is set at a predetermined command identification value indicating the command data, the communication control unit supplies data contained in the reception packet to the device control unit.Type: ApplicationFiled: February 13, 2007Publication date: September 27, 2007Applicant: SEIKO EPSON CORPORATIONInventor: Eiji KANEKO
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Redirecting flow to reduce disturbances upon an actuator arm or head-gimbal assembly of a disc drive
Patent number: 6995947Abstract: A flow-induced disturbance upon an actuator arm is reduced. A gas flow generated by a rotation of a disc is received and passed along a surface. The surface is mechanically isolated from the actuator arm. The surface redirects the received flow to include a substantial inward radial component so as to be better aligned along a leading edge of the actuator arm.Type: GrantFiled: March 30, 2001Date of Patent: February 7, 2006Assignee: Seagate Technology LLCInventors: Kurt James Korkowski, James Eiji Kaneko -
Patent number: 6987640Abstract: A disc drive includes a base, at least one disc rotatably attached to the base, and an actuator assembly rotatably attached to base and supporting a slider and a transducer at a distal end thereof. The slider and transducer are positioned to be in transducing relation with respect to the disc. An air dam is positioned over the disc and near an arc through which the slider and transducer are rotated. The air dam is positioned so as to produce an area of high pressure substantially about an area including a portion of the arc through which the slider and transducer are rotated. Surfaces are aligned with and extend in a coplanar relationship with the disc to transfer an outwardly directed airflow away from the disc without impinging turbulent flow on or at the disc edge.Type: GrantFiled: August 27, 2002Date of Patent: January 17, 2006Assignee: Seagate Technology LLCInventors: Alan Hing-Bun Tsang, James Eiji Kaneko, Srinivas Tadepalli, Cory Bert Welscher, Narintr Narisaranukul, Blaine Thomas Peterson, Carl Fred Adams
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Patent number: 6621372Abstract: In an impedance matching device having at least two stubs serially provided to a main coaxial tube so as to be separated from each other with a predetermined interval in a tube axial direction, each stub is composed of a variable capacity capacitor to be jointed to an inner conductor of the main coaxial tube, an electrically conductive capacitor cover to be jointed to an outer conductor of the main coaxial tube so as to cover a surrounding of the variable capacity capacitor, and a drive motor arranged on an outside of the capacitor cover so as to drive a movable side electrode of the variable capacity capacitor. The movable side electrode of the variable capacity capacitor is driven directly by the drive motor so that the impedance matching device is made to be compact and response of impedance matching to a fluctuation of a load impedance such as a behavior of a plasma load is improved, and the life is lengthened and degrees of freedom of installation is widened.Type: GrantFiled: February 27, 2002Date of Patent: September 16, 2003Assignee: Daihen CorporationInventors: Kazuki Kondo, Daisuke Matsuno, Eiji Kaneko, Koji Itadani
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Publication number: 20020196581Abstract: A disc drive includes a base, at least one disc rotatably attached to the base, and an actuator assembly rotatably attached to base. The actuator assembly also has a suspension assembly having an attached end and a free end. The suspension assembly further includes a slider attached to attached to the free end of the suspension assembly; and a transducer attached to the slider. The slider and transducer are positioned to be in transducing relation with respect to the disc. The slider and transducer are rotated through an arc over the disc. An air dam is positioned over the disc and near the arc through which the slider and transducer are rotated. The air dam is positioned so as to produce an area of high pressure substantially about an area including a portion of the arc through which the slider and transducer are rotated.Type: ApplicationFiled: August 27, 2002Publication date: December 26, 2002Inventors: Alan Hing-Bun Tsang, James Eiji Kaneko, Srinivas Tadepalli, Cory Bert Welscher, Narintr Narisaranukul, Blaine Thomas Peterson, Carl Fred Adams
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Patent number: 6480833Abstract: An overloaded routines resolving method of analyzing an invocation for the group of overloaded routines to determine the routine to be called, the method including: the routine group sorting step of sorting the group of routines on the basis of the predetermined precedence; the reference utilization pruning step of determining the routine which has the highest precedence of a data type of an argument from among the routines which can be called for the types in the definition of the arguments of the invocation from the sorted routines and of deleting any of the routines each of which has the lower precedence than that of the routine thus determined from the candidates; and the sort order characteristic pruning step of comparing the data types of the arguments among the routines which still remain after having executed the reference utilization pruning step to delete any of the routines each of which has no possibility of being called from the candidates.Type: GrantFiled: May 27, 1999Date of Patent: November 12, 2002Assignee: Hitachi, Ltd.Inventors: Eiji Kaneko, Morihiro Iwata, Masato Asami, Masashi Tsuchida, Yoshito Kamegi
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Publication number: 20020163398Abstract: In an impedance matching device having at least two stubs serially provided to a main coaxial tube so as to be separated from each other with a predetermined interval in a tube axial direction, each stub is composed of a variable capacity capacitor to be jointed to an inner conductor of the main coaxial tube, an electrically conductive capacitor cover to be jointed to an outer conductor of the main coaxial tube so as to cover a surrounding of the variable capacity capacitor, and a drive motor arranged on an outside of the capacitor cover so as to drive a movable side electrode of the variable capacity capacitor. The movable side electrode of the variable capacity capacitor is driven directly by the drive motor so that the impedance matching device is made to be compact and response of impedance matching to a fluctuation of a load impedance such as a behavior of a plasma load is improved, and the life is lengthened and degrees of freedom of installation is widened.Type: ApplicationFiled: February 27, 2002Publication date: November 7, 2002Applicant: Daihen CorporationInventors: Kazuki Kondo, Daisuke Matsuno, Eiji Kaneko, Koji Itadani
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Patent number: 6426475Abstract: The flux density Bct is applied at the center area of the electrode. The flux density Bct is adjusted within the range A of 0.75 to 0.9 times greater than the axial flux density Bcr which gives the lowest arc voltage between the electrodes against each breaking current. The axial flux density monotonously increases from the center to the circumferential area of the electrode. Here, the radial position where the axial flux density Bcr which gives the lowest arc voltage Vmin is adjusted within the region B of 20% to 40% of the radius of the electrode. The axial flux density is made monotonously increase in an outer area from the region B and give the maximum value Bp in a circumferential area equal to or beyond 70% of the radius of the electrode. The maximum value Bp is adjusted within the range C of 1.4 to 2.4 times greater than the flux density Bct given at the electrode center.Type: GrantFiled: June 14, 2001Date of Patent: July 30, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Kenji Watanabe, Kumi Uchiyama, Kiyoshi Kagenaga, Junichi Sato, Eiji Kaneko, Mitsutaka Honma, Hiromichi Somei
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Publication number: 20020055931Abstract: An overloaded routines resolving method of analyzing an invocation for the group of overloaded routines to determine the routine to be called, the method including: the routine group sorting step of sorting the group of routines on the basis of the predetermined precedence; the reference utilization pruning step of determining the routine which has the highest precedence of a data type of an argument from among the routines which can be called for the types in the definition of the arguments of the invocation from the sorted routines and of deleting any of the routines each of which has the lower precedence than that of the routine thus determined from the candidates; and the sort order characteristic pruning step of comparing the data types of the arguments among the routines which still remain after having executed the reference utilization pruning step to delete any of the routines each of which has no possibility of being called from the candidates.Type: ApplicationFiled: May 27, 1999Publication date: May 9, 2002Inventors: EIJI KANEKO, MORIHIRO IWATA, MASATO ASAMI, MASASHI TSUCHIDA, YOSHITO KAMEGI
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Publication number: 20020050485Abstract: The flux density Bct is applied at the center area of the electrode. The flux density Bct is adjusted within the range A of 0.75 to 0.9 times greater than the axial flux density Bcr which gives the lowest arc voltage between the electrodes against each breaking current.Type: ApplicationFiled: June 9, 1997Publication date: May 2, 2002Inventors: KENJI WATANABE, KUMI UCHIYAMA, KIYOSHI KAGENAGA, JUNICHI SATO, EIJI KANEKO, MITSUTAKA HONMA, HIROMICHI SOMEI
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Patent number: 6376791Abstract: A method for improving flux density in a vacuum valve, includes producing, with a vacuum valve, an axial magnetic field parallel to an arc generated between a movable and a stationary electrodes facing each other, and adjusting a magnitude of an axial flux density between the electrodes to increase gradually from a center area of the electrodes toward a circumferential area of each electrode. A point gives a maximum value (Bp) of the axial flux density at a location of and beyond 70% of a radius from the center of each electrode, and the maximum value (Bp) of the axial flux density in a radial line from the center to a circumferential end to be 1.4 to 2.4 times greater than a flux density of the center Bct of each electrode.Type: GrantFiled: June 9, 1997Date of Patent: April 23, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Kenji Watanabe, Kumi Uchiyama, Kiyoshi Kagenaga, Junichi Sato, Eiji Kaneko, Mitsutaka Honma, Hiromichi Somei
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Publication number: 20020036862Abstract: A disc drive includes a base, at least one disc rotatably attached to the base, and an actuator assembly rotatably attached to base. The actuator assembly also has a suspension assembly having an attached end and a free end. The suspension assembly further includes a slider attached to attached to the free end of the suspension assembly; and a transducer attached to the slider. The slider and transducer are positioned to be in transducing relation with respect to the disc. The slider and transducer are rotated through an arc over the disc. An air dam is positioned over the disc and near the arc through which the slider and transducer are rotated. The air dam is positioned so as to produce an area of high pressure substantially about an area including a portion of the arc through which the slider and transducer are rotated.Type: ApplicationFiled: July 9, 2001Publication date: March 28, 2002Applicant: Seagate Technology LLCInventors: Alan Hing-Bun Tsang, Narintr Narisaranukul, James Eiji Kaneko, Blaine Thomas Peterson, Carl Fred Adams
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Redirecting flow to reduce disturbances upon an actuator arm or head-gimbal assembly of a disc drive
Publication number: 20010036037Abstract: A flow-induced disturbance upon an actuator arm is reduced. A gas flow generated by a rotation of a disc is received and passed along a surface. The surface is mechanically isolated from the actuator arm. The surface redirects the received flow to include a substantial inward radial component so as to be better aligned along a leading edge of the actuator arm.Type: ApplicationFiled: March 30, 2001Publication date: November 1, 2001Inventors: Kurt James Korkowski, James Eiji Kaneko -
Publication number: 20010030174Abstract: The flux density Bct is applied at the center area of the electrode. The flux density Bct is adjusted within the range A of 0.75 to 0.9 times greater than the axial flux density Bcr which gives the lowest arc voltage between the electrodes against each breaking current.Type: ApplicationFiled: June 14, 2001Publication date: October 18, 2001Inventors: Kenji Watanabe, Kumi Uchiyama, Kiyoshi Kagenaga, Junichi Sato, Eiji Kaneko, Mitsutaka Honma, Hiromichi Somei
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Patent number: 6216557Abstract: A push rod includes a rod body and a steel ball bonded to at least one of end faces of the rod body by an electric resistance welding. The rod body 2 is formed from an aluminum alloy. Thus, it is possible to provide a push rod which is lightweight and which can be produced at an inexpensive cost.Type: GrantFiled: January 29, 1996Date of Patent: April 17, 2001Assignees: Honda Giken Kogyo Kabushiki Kaisha, Kabushiki Kaisha HongoInventors: Yukio Ishiuchi, Toshikazu Hamamoto, Michishige Sakai, Makoto Nagata, Hiroshi Waragaya, Iwao Ishii, Eiji Kaneko, Hiroyoshi Ootsuki
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Patent number: 5966353Abstract: There is provided an optical storage device that can position a lens carriage and objective lens even when position sensors for the lens carriage and objective lens are excluded in an effort to make an optical disk unit thinner. In the optical storage device, immediately after an optical disk is loaded in a main body, the cutoff frequency of a filter lying on a path of a reproduction signal is temporarily changed to a lower frequency. A spacing of sectors of the optical disk is detected using a signal sent from the filter. A type of an optical storage medium and a position of a current reproduction track are detected on the basis of the detected sector spacing and data stored in a memory.Type: GrantFiled: October 28, 1997Date of Patent: October 12, 1999Assignee: Fujitsu LimitedInventors: Eiji Kaneko, Shigeyoshi Tanaka, Akira Nanba, Kenichi Hamada, Toru Ikeda
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Patent number: 4978181Abstract: A sunshade composed of a transparent substrate, a first base and a second base which are provided on the both surfaces of the substrate, an infrared ray-reflecting layer which is provided on the first base and which reflects infrared rays, and a sun light-reflecting layer which is provided on the second base and which reflects a sun radiant energy with partly transmitting visible rays. The infrared ray-reflecting layer may optionally be coated with a protective layer. At least one of the protective layer, the first base and the second base has a rough surface which may diffusively reflect the light as reflected by the infrared ray-reflecting layer and the sun light-reflecting layer. In place of formation of the rough surface, a light-diffusing agent may be incorporated into the substrate, the both bases or the protective layer.Type: GrantFiled: June 24, 1988Date of Patent: December 18, 1990Assignees: Kajima Corp., Tachikawa Corp., Teijin Chemicals Ltd.Inventors: Minoru Inanuma, Shumpei Ohara, Yukio Sano, Akihiro Goto, Shinji Sasamoto, Eiji Kaneko, Takashi Miyao, Yukio Torii, Keijiro Umemoto, Ryo Hirako, Nobuo Suzuki, Tadashi Shingu
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Patent number: 4841538Abstract: A CO.sub.2 gas laser device comprises a plurality of divided cathode electrodes disposed in a linear row extending transversely across a high-speed flow of a gas containing CO.sub.2, and parts of the cathode electrodes producing negative glow are disposed at the same height as anodes at a downstream position. Additionally, a device for controlling the distribution of gas flow velocity, which functions doubly as means for creating turbulent flow, and a preliminary discharge electrode are disposed on the upstream side of the cathode electrodes, the former being set at a height position corresponding substantially to that of the middle portions of the cathode electrodes.Type: GrantFiled: November 10, 1988Date of Patent: June 20, 1989Assignee: Kabushiki Kaisha ToshibaInventors: Satoru Yanabu, Hideomi Takahashi, Eiji Kaneko, Koichi Yasuoka
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Patent number: 4736078Abstract: A vacuum switch having two main electrodes encased in a vacuum vessel to be operable in opening and closing the main electrodes, is provided with a contact piece made of a copper-chromium alloy secured or formed on at least one of the main electrodes. The operational property of the main electrodes is substantially improved by flowing and interrupting an electric current of a predetermined current density for a number of times through the two main electrodes for improving surface condition of the contact piece by forming a recrystallized layer over the outer surface of the contact piece.Type: GrantFiled: April 28, 1987Date of Patent: April 5, 1988Assignee: Kabushiki Kaisha ToshibaInventors: Koichi Yasuoka, Tohru Tamagawa, Eiji Kaneko, Mitsutaka Homma, Satoru Yanabu, Takumi Funahashi