Patents by Inventor Eiji Takagi
Eiji Takagi 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: 20210094280Abstract: A print head assembled to a liquid ejecting apparatus ejecting a liquid with respect to a medium includes an ejecting portion ejecting the liquid in response to a drive signal and an electrically erasable non-volatile memory, and the non-volatile memory stores history information changing in accordance with an operation state of the print head.Type: ApplicationFiled: September 25, 2020Publication date: April 1, 2021Inventors: Eiji TAKAGI, Masanori KOIZUMI, Shunya KOMATSU, Shuichi NAKANO, Masashi KAMIYANAGI, Toru MATSUYAMA
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Publication number: 20210094276Abstract: A print head includes ejecting portions ejecting liquid by being supplied with a high voltage signal, a switch group switching between whether or not to supply the high voltage signal to the first ejecting portion group in accordance with a low voltage logic signal, a memory, a high voltage signal input terminal, and a low voltage logic signal input terminal, the print head having a first mode in which the print head executes reading processing of reading information stored in the memory and does not execute ejection control processing of controlling whether or not to supply the high voltage signal to the first ejecting portion group by switching the switch group in accordance with an input signal input from the low voltage logic signal input terminal and a second mode in which the print head does not execute the reading processing and executes the ejection control processing.Type: ApplicationFiled: September 25, 2020Publication date: April 1, 2021Inventors: Eiji TAKAGI, Masanori KOIZUMI, Shunya KOMATSU, Shuichi NAKANO, Masashi KAMIYANAGI, Toru MATSUYAMA
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Publication number: 20210094306Abstract: A print head drive circuit outputs an output signal from a terminal electrically coupled to a low voltage logic signal input terminal to which a low voltage logic signal is input and has a first mode in which the print head drive circuit controls a print head to execute reading processing of reading information stored in a memory and not to execute ejection control processing of controlling whether or not to supply a high voltage signal to an ejecting portion group by switching a switch group in accordance with the output signal and a second mode in which the print head drive circuit controls the print head not to execute the reading processing and to execute the ejection control processing in accordance with the output signal.Type: ApplicationFiled: September 25, 2020Publication date: April 1, 2021Inventors: Eiji TAKAGI, Masanori KOIZUMI, Shunya KOMATSU, Shuichi NAKANO, Masashi KAMIYANAGI, Toru MATSUYAMA
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Publication number: 20210094282Abstract: A print head drive circuit drives a print head including an ejecting portion ejecting a liquid in response to a drive signal propagating through a drive signal line and a storage portion storing ejecting portion-related information changing in accordance with use of the ejecting portion, in which processing of reading the ejecting portion-related information changing in accordance with the use from the storage portion is performed before the drive signal for ejecting the liquid from the ejecting portion is supplied to the print head.Type: ApplicationFiled: September 25, 2020Publication date: April 1, 2021Inventors: Eiji TAKAGI, Masanori KOIZUMI, Shunya KOMATSU, Shuichi NAKANO, Masashi KAMIYANAGI, Toru MATSUYAMA
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Publication number: 20200247240Abstract: An information display apparatus and a spatial sensing apparatus for the information display apparatus are provided, the information display apparatus enabling the selection/change of the lot of display images in small point-of-view motion so that an interactive function for a driver is achieved. An information display apparatus displaying information onto a vehicle includes: an information display apparatus displaying image information onto an image display region on a forward part of a driver seat of the vehicle; and a spatial sensing means detecting positional information of instruction made by a driver in a spatial region between the driver seat and the displayed image display region, and the information display apparatus includes a means displaying the instruction made by the driver onto the image display region on the forward part in response to the positional information of the instruction made by the driver, detected by the spatial sensing means.Type: ApplicationFiled: October 5, 2018Publication date: August 6, 2020Inventors: Koji HIRATA, Koji FUJITA, Eiji TAKAGI
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Patent number: 8285882Abstract: An output apparatus includes an IP-address setting unit, a setting change detection unit, and a notification information creation unit. The IP-address setting unit sets an IP address of the output apparatus. The setting change detection unit detects a change in the setting of the IP-address setting unit. The notification information creation unit creates information that will be notified to a device that satisfies predetermined conditions upon detection of the setting change by the setting change detection unit.Type: GrantFiled: February 1, 2010Date of Patent: October 9, 2012Assignee: Seiko Epson CorporationInventor: Eiji Takagi
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Publication number: 20100228883Abstract: An output apparatus includes an IP-address setting unit, a setting change detection unit, and a notification information creation unit. The IP-address setting unit sets an IP address of the output apparatus. The setting change detection unit detects a change in the setting of the IP-address setting unit. The notification information creation unit creates information that will be notified to a device that satisfies predetermined conditions upon detection of the setting change by the setting change detection unit.Type: ApplicationFiled: February 1, 2010Publication date: September 9, 2010Applicant: SEIKO EPSON CORPORATIONInventor: Eiji TAKAGI
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Patent number: 6903830Abstract: An electronic printing apparatus according to the present invention provides, for a print controller, a normal operating mode and a power saving mode for which less power is required. More preferably, when the print controller is set to the power saving mode, an interface circuit for accepting a printing interrupt is maintained in the normal state, and a CPU for controlling the printing sequence enters a power saving state. Then, the print controller, while in the power saving mode, can realize a constant savings in power, and can appropriately accept an interrupt, such as a print interrupt.Type: GrantFiled: March 9, 2000Date of Patent: June 7, 2005Assignee: Seiko Epson CorporationInventors: Kiyoji Hane, Eiji Takagi
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Publication number: 20040163848Abstract: To manufacture a printed wiring board, the positions and shapes of several slits to satisfy UL796 standard, etc., formed in a ground or power supply plane are determined so that each slit is formed in a section corresponding to a ground guard in a portion containing a signal line and a signal line gap.Type: ApplicationFiled: December 5, 2003Publication date: August 26, 2004Applicant: SEIKO EPSON CORPORATIONInventors: Eiji Takagi, Yuichi Kojima
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Patent number: 6455880Abstract: A high frequency semiconductor device has a semiconductor substrate such as the semi-insulating GaAs; a first metal layer disposed above the semiconductor substrate; a first dielectric thin film disposed on the first metal layer; and a second metal layer having a second metal strip disposed on the first dielectric thin film. Here, the first metal layer has a first metal strip, first and second ground metal plates sandwiching the first metal strip. And the first dielectric thin film is not disposed uniformly on the surface of the first ground metal plate so that the dielectric structure on the first metal strip differs from the dielectric structure under the second metal strip. The CPW is constituted by the first metal strip, the first and second ground metal plates, and the TFMSL is constituted by the second metal strip and the first ground metal plate.Type: GrantFiled: November 5, 1999Date of Patent: September 24, 2002Assignee: Kabushiki Kaisha ToshibaInventors: Naoko Ono, Yuji Iseki, Keiichi Yamaguchi, Junko Onomura, Eiji Takagi
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Patent number: 5898909Abstract: Disclosed is an ultra high frequency radio communication apparatus having: a receiver antenna; a transmitter antenna; an IC chip being electrically connected to the receiver antenna and the transmitter antenna; a substrate on which the receiver antenna, the transmitter antenna and the IC chip are mounted; an input terminal for inputting to the IC chip a base band input signal; an output terminal for outputting a base band output signal from the IC chip; and a control signal terminal for inputting a control signal for controlling the IC chip to the IC chip. The IC chip is placed in a shielding space such that the cut-off frequency of the shielding space is higher than the frequency of a carrier signal for radio communication.Type: GrantFiled: September 27, 1996Date of Patent: April 27, 1999Assignee: Kabushiki Kaisha ToshibaInventors: Kunio Yoshihara, Kouhei Morizuka, Mitsuo Konno, Yasuo Ashizawa, Junko Akagi, Yasuhiro Kuriyama, Motoyasu Morinaga, Eiji Takagi, Yasushi Shizuki, Yuji Iseki, Takeshi Hanawa, Takeshi Miyagi
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Patent number: 5870533Abstract: A system for causing a device such as a printer to receive data from an external device such as a host computer, the system allowing the printer to automatically set not only a pattern for outputting an acknowledge signal (ACK) and a busy signal (BUSY) but also the capacity of a receiving buffer so as to match the external device, so that efficient data reception can be made, thereby freeing the external device at an early stage of the data reception.Type: GrantFiled: October 20, 1997Date of Patent: February 9, 1999Assignee: Seiko Epson CorporationInventor: Eiji Takagi
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Patent number: 5764119Abstract: A wiring board for high-frequency signals, which comprises, a substrate, a dielectric layer formed on the substrate and provided on its surface with a U-shaped groove having an arcuate bottom for forming a wiring therein, and a signal wiring formed in the U-shaped groove, which is featured in that an upper end portion of the signal wiring is protruded out of the surface of the dielectric layer. A distance (H) from a protruded top surface of the signal wiring to a bottom of the U-shaped groove and a width (W) of the U-shaped groove preferably meet a relationship of 2<(W/H)<50, and the height of the portion of signal wiring which is protruded out of the surface of the dielectric layer is preferably in the range of 10 nm to 10 .mu.m.Type: GrantFiled: October 3, 1996Date of Patent: June 9, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Takeshi Miyagi, Yuji Iseki, Yasushi Shizuki, Kunio Yoshihara, Masayuki Saito, Kazuhito Higuchi, Takeshi Hanawa, Eiji Takagi
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Patent number: 5745663Abstract: A system for causing a device such as a printer to receive data from an external device such as a host computer, the system allowing the printer to automatically set not only a pattern for outputting an acknowledge signal (ACK) and a busy signal (BUSY) but also the capacity of a receiving buffer so as to match the external device, so that efficient data reception can be made, thereby freeing the external device at an early stage of the data reception.Type: GrantFiled: June 2, 1995Date of Patent: April 28, 1998Assignee: Seiko Epson CorporationInventor: Eiji Takagi
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Patent number: 5631809Abstract: A semiconductor device comprising a semiconductor chip, a sheet-like metal member electrically connected to a major surface of the semiconductor chip and serving as a ground electrode for the chip, and input/output electrodes electrically connected to the semiconductor chip and situated in the same plane as that of the sheet-like metal member, the chip, the metal member, and the input/output electrodes being encapsulated in an electrically insulating member having a bottom surface and adapted to be mounted on a surface of a circuit board. The sheet-like metal member is brought out from inside the electrically insulating member without being bent and has its one end face situated in substantially the same plane as the bottom surface of the electrically insulating member which faces to the surface of the circuit board when the metal member is mounted on the circuit board and the major surface of the chip is approximately prependicular to the end face of the sheet-like metal member.Type: GrantFiled: September 13, 1994Date of Patent: May 20, 1997Assignee: Kabushiki Kaisha ToshibaInventors: Eiji Takagi, Yuji Iseki, Naoko Ono
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Patent number: 5493342Abstract: A white balance correction circuit, which receives a luminance signal (-Y) on the input terminal (20) and produces a modified luminance signal, has its gain G1 for the range of small input luminance signal level determined from the resistance ratio of resistors (29, 33), has its gain G2 for the range of medium input luminance signal level determined from the resistance ratio of the resistor 29 and resistors (33, 35) connected in parallel by a transistor (39) that has become conductive, and has its gain G3 for the range of large input luminance signal level determined from the resistance ratio of the resistor 29 and resistors (33, 34, 35) connected in parallel by the transistor (39) and a transistor (38) that has become conductive. Based on this modification, three picture projection tubes (23) have cathode voltage characteristics against the amplitude of luminance signal (-Y) represented by three polygonal lines that approximate the ideal luminance characteristics of the projection tubes.Type: GrantFiled: December 14, 1993Date of Patent: February 20, 1996Inventors: Yasushi Naito, Toshimitsu Watanabe, Eiji Takagi, Takeshi Mochizuki
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Patent number: 4994915Abstract: The aperture correction circuit of the present invention comprises a preshoot signal generator which generates the preshoot signal of the edge part of a video signal, an overshoot signal generator which generates the overshoot signal of the edge part of the video signal, a shoot signal composition circuit which adds the preshoot signal and the overshoot signal at an addition ratio corresponding to a control signal, thereby to deliver the resulting signal as a correcting shoot signal, and an adder which adds the video signal and the correcting shoot signal, thereby to deliver the resulting signal as an output, wherein the shoot signal composition circuit is supplied as the control signal with a signal which changes according to the input video signal, such as the differentiated signal of the input video signal. Thus, the ratio between the preshoot signal and the overshoot signal is dynamically changed according to the input signal, so that an image quality can be adjusted according to the input video signal.Type: GrantFiled: May 10, 1989Date of Patent: February 19, 1991Assignee: Hitachi, Ltd.Inventors: Satoshi Takahashi, Eiji Takagi, Yukinari Ueki, Hideaki Ohki, Koji Kamogawa
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Patent number: D342330Type: GrantFiled: June 4, 1992Date of Patent: December 14, 1993Assignee: O M Kiki Co., Ltd.Inventors: Tokuzo Kobayashi, Eiji Takagi