Patents by Inventor Akiko Maeno
Akiko Maeno 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: 11015321Abstract: An operational data storage device mounted on an hydraulic excavator is programmed to store operational data including stroke data and movement quantity data. The stroke data represent input operations by the operator of the hydraulic excavator through electric operating levers, and the movement quantity data represent movement quantities of operating members for a front working device equipped with the hydraulic excavator, the operating member being operated according to the input operations. The operational data storage device stores, in an initial state, the operational data in the volatile storage section, generates a save and exit signal if a posture parameter detected at a posture detection sensor included in the hydraulic excavator exceeds a predetermined posture threshold, and responsive to the save and exit signal, switches a write destination of the operational data from the volatile storage section to the non-volatile storage section.Type: GrantFiled: February 13, 2018Date of Patent: May 25, 2021Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventors: Takeshi Shiina, Hiroshi Kanezawa, Hirofumi Migita, Shintaro Doi, Toshiakira Takahashi, Masatoshi Sakurai, Yoshitaka Yanase, Akiko Maeno
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Publication number: 20190186104Abstract: An operational data storage device mounted on an hydraulic excavator is programmed to store operational data including stroke data and movement quantity data. The stroke data represent input operations by the operator of the hydraulic excavator through electric operating levers, and the movement quantity data represent movement quantities of operating members for a front working device equipped with the hydraulic excavator, the operating member being operated according to the input operations. The operational data storage device stores, in an initial state, the operational data in the volatile storage section, generates a save and exit signal if a posture parameter detected at a posture detection sensor included in the hydraulic excavator exceeds a predetermined posture threshold, and responsive to the save and exit signal, switches a write destination of the operational data from the volatile storage section to the non-volatile storage section.Type: ApplicationFiled: February 13, 2018Publication date: June 20, 2019Inventors: Takeshi SHIINA, Hiroshi KANEZAWA, Hirofumi MIGITA, Shintaro DOI, Toshiakira TAKAHASHI, Masatoshi SAKURAI, Yoshitaka YANASE, Akiko MAENO
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Patent number: 7970366Abstract: A diversity receiver is provided with antennas (1a) and (1b) in a first branch and antennas (1c) and (1d) in a second branch each of which antenna gains is controlled so that the offset between the directions of directional radiation patterns for the first and second branches becomes approximately ?/2. Thereby, the diversity receiver can obtain a sufficient diversity gain even when it is incorporated into an indoor television with the antennas being built thereinto in close vicinity to one another.Type: GrantFiled: February 13, 2008Date of Patent: June 28, 2011Assignee: Mitsubishi Electric CorporationInventors: Eiji Arita, Jun Ido, Akiko Maeno
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Publication number: 20080238808Abstract: A diversity receiver is provided with antennas (1a) and (1b) in a first branch and antennas (1c) and (1d) in a second branch each of which antenna gains is controlled so that the offset between the directions of directional radiation patterns for the first and second branches becomes approximately ?/2. Thereby, the diversity receiver can obtain a sufficient diversity gain even when it is incorporated into an indoor television with the antennas being built thereinto in close vicinity to one another.Type: ApplicationFiled: February 13, 2008Publication date: October 2, 2008Applicant: Mitsubishi Electric CorporationInventors: Eiji Arita, Jun Ido, Akiko Maeno
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Patent number: 5835164Abstract: In a color image display system formed of a monochromatic CRT or like image display device (102) having a screen (103) for display of images and a rotary filter (106) comprising color filter sections (106R, 106G and 106B) of a plurality of colors; image signals are read from memories (130R, 130G, 130B) at a rate higher than they are written in the memories, so as to reduce flickers. The problem of passing of the reading address over the writing address is solved by reading the image signal of prominent color taking a period in which the passing over occurs. High frequency components of other color image signals are extracted and added to the image signal of each color to thereby enhance the definition of the picture.Type: GrantFiled: June 5, 1995Date of Patent: November 10, 1998Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Akira Kanai, Masaki Yamakawa, Shoichi Sugihara, Akiko Maeno
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Patent number: 5648825Abstract: In a color image display system formed of a monochromatic CRT or like image display device (102) having a screen (103) for display of images and a rotary filter (106) comprising color filter sections (106R, 106G and 106B) of a plurality of colors; image signals are read from memories (130R, 130G, 130B) at a rate higher than they are written in the memories, so as to reduce flickers. The problem of passing of the reading address over the writing address is solved by reading the image signal of prominent color taking a period in which the passing over occurs. High frequency components of other color image signals are extracted and added to the image signal of each color to thereby enhance the definition of the picture.Type: GrantFiled: June 5, 1995Date of Patent: July 15, 1997Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Akira Kanai, Masaki Yamakawa, Shoichi Sugihara, Masaharu Hayakawa, Kiyotaka Yamamoto, Masafumi Kodama, Akiko Maeno
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Patent number: 5574516Abstract: A color image display system includes a monochromatic CRT or similar image display device which includes a screen for display of images and a rotary filter having filter sections of a plurality of colors. The system further includes memories for storing color image signals corresponding to each of the colors. A control circuit reads the color image signals from the memories at a higher rate than the color image signals are written into the memories to reduce image flickering. The reading operation, however, passes over the writing operation. Discontinuities caused by this passing over are reduced by reading a color image signal corresponding to a less prominent color during the passing over. Discontinuities are avoided by providing an additional memory in the system and alternately reading and writing between one of the first set of memories and the additional memory.Type: GrantFiled: July 8, 1993Date of Patent: November 12, 1996Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Akira Kanai, Masaki Yamakawa, Shoichi Sugihara, Masaharu Hayakawa, Kiyotaka Yamamoto, Masafumi Kodama, Akiko Maeno