Patents by Inventor Tetsuro Murayama
Tetsuro Murayama 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: 9202420Abstract: An image rewriting process includes a first pulse application process for using a driving pulse signal with the pulse width of a first electric potential being a first width; a driving stop process for stopping generation of an electric field between pixel electrodes and a common electrode, performed after the first pulse application process; and a second pulse application process for using the driving pulse signal with the pulse width of the first electric potential being a second width, performed after the driving stop process.Type: GrantFiled: November 29, 2011Date of Patent: December 1, 2015Assignee: Seiko Epson CorporationInventor: Tetsuro Murayama
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Patent number: 9183793Abstract: An electrophoretic display apparatus driving method that allows DC balance to be achieved and reduces variations in size and color tone of a displayed image that may occur in a partial-screen drive method and related apparatus are provided. The drive method includes a first image display step (S2) of displaying a first image in a first color on a display section, a first image adjustment step (S3) of displaying a background of the first image in a second color, a first image deletion step (S4) of displaying the background of the first image in the first color, a second image display step (S12) of displaying a background of a second image in the second color, a second image adjustment step (S13) of displaying the second image in the first color, and a second image deletion step (S14) of displaying the second image in the second color.Type: GrantFiled: December 18, 2012Date of Patent: November 10, 2015Assignee: Seiko Epson CorporationInventor: Tetsuro Murayama
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Publication number: 20150206332Abstract: An electronic watch includes a display section and has a first mode in which a first image that expresses passage of time is displayed on the display section and a second mode in which a second image that includes time information is displayed on the display section.Type: ApplicationFiled: January 20, 2015Publication date: July 23, 2015Inventors: Tsuyoshi MATSUI, Tetsuro MURAYAMA, Tetsuya MIYAKE
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Patent number: 9041749Abstract: A method includes: causing a first image to be displayed in a first color by a partial drive format; causing a background of the first image to be displayed in the first color; causing a background of a second image to be displayed in a second color; and causing the second image to be displayed in the second color. In a case where a temperature detection unit detects a predetermined change in temperature after causing a background of a second image to be displayed in a second color and before causing the second image to be displayed in the second color, then causing a predetermined image to be displayed and causing the predetermined image to be complementarily displayed using a drive pulse signal adjusted for the temperature after the change.Type: GrantFiled: August 30, 2013Date of Patent: May 26, 2015Assignee: Seiko Epson CorporationInventor: Tetsuro Murayama
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Patent number: 8896520Abstract: An electrophoretic display apparatus includes a first substrate and a second substrate; an electrophoretic layer that is allocated between the first substrate and the second substrate; and a first electrode and a second electrode that are each formed in an island shape, for each pixel, at the electrophoretic layer side of the first substrate, and are mutually independently driven. The first and second electrodes form a comb-teeth shaped electrode in a plan view, which include a plurality of branch portions and a trunk portion combining the plurality of branch portions, and each of first ones of the branch portions, which are located at respective edge portions of a pixel area, has a width smaller than a width of each of second ones of the branch portions, which are branch portions other than the first branch portions.Type: GrantFiled: June 7, 2011Date of Patent: November 25, 2014Assignee: Seiko Epson CorporationInventors: Tetsuro Murayama, Yukimasa Ishida
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Publication number: 20140320468Abstract: An electrophoretic display apparatus driving method that allows DC balance to be achieved and reduces variations in size and color tone of a displayed image that may occur in a partial-screen drive method and related apparatus are provided. The drive method includes a first image display step (S2) of displaying a first image in a first color on a display section, a first image adjustment step (S3) of displaying a background of the first image in a second color, a first image deletion step (S4) of displaying the background of the first image in the first color, a second image display step (S12) of displaying a background of a second image in the second color, a second image adjustment step (S13) of displaying the second image in the first color, and a second image deletion step (S14) of displaying the second image in the second color.Type: ApplicationFiled: December 18, 2012Publication date: October 30, 2014Inventor: Tetsuro Murayama
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Publication number: 20140071183Abstract: A method includes: causing a first image to be displayed in a first color by a partial drive format; causing a background of the first image to be displayed in the first color; causing a background of a second image to be displayed in a second color; and causing the second image to be displayed in the second color. In a case where a temperature detection unit detects a predetermined change in temperature after causing a background of a second image to be displayed in a second color and before causing the second image to be displayed in the second color, then causing a predetermined image to be displayed and causing the predetermined image to be complementarily displayed using a drive pulse signal adjusted for the temperature after the change.Type: ApplicationFiled: August 30, 2013Publication date: March 13, 2014Applicant: SEIKO EPSON CORPORATIONInventor: Tetsuro MURAYAMA
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Patent number: 8390565Abstract: An electrophoretic display device includes a first substrate and a second substrate that face each other, an electrophoretic element disposed between the first substrate and the second substrate, the electrophoretic element including electrophoretic particles, a display unit that has a plurality of pixels including the electrophoretic element, a common electrode that is formed on an electrophoretic element side of the second substrate, and a first control line and a second control line that are formed in either the first substrate or the second substrate. Each of the plurality of pixels includes a pixel switching element, a memory circuit that is connected to the pixel switching element, a switching circuit that is connected to the memory circuit, and a first pixel electrode and a second pixel electrode that are connected to the switching circuit and are disposed to face the common electrode.Type: GrantFiled: May 11, 2009Date of Patent: March 5, 2013Assignee: Seiko Epson CorporationInventors: Tetsuro Murayama, Yasuhiro Shimodaira, Hiroshi Maeda
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Patent number: 8353409Abstract: A gas hydrate slurry dewatering apparatus adapted to feed a raw as into a cylindrical main body of dewatering column so gas to attain pressuriation and so suction any gas from the interior of a drainage chamber disposed around the cylindrical main body so as to attain depressurization. An internal tube (8) as a constituent of a dewatering apparatus (6) in which the gas hydrate slurry (S) is introduced is provided with a separating section (7). A drainage chamber (10) is formed by the internal tube (8) and, disposed with a given spacing therefrom, an external tube (9). An exhaust blower (B2) and a drainage pump (P2) are connected to the drainage chamber (10). A gas feed blower (B3) for a raw gas (G1) is connected to the internal tube (8). A differential pressure detector (x1) is provided for detecting any pressure difference between the interior of the internal tube (8) and the interior of the drainage chamber (10).Type: GrantFiled: March 25, 2008Date of Patent: January 15, 2013Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.Inventors: Tetsuro Murayama, Kiyoshi Horiguchi, Takashi Arai, Toru Iwasaki, Hidenori Moriya
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Publication number: 20130008517Abstract: Provided are a gas hydrate percentage measuring device and a method of controlling the same which are capable of measuring a gas hydrate percentage with high accuracy even if source gas exists dissolved in gas hydrate slurry or as gas bubble therein.Type: ApplicationFiled: November 5, 2010Publication date: January 10, 2013Applicant: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.Inventor: Tetsuro Murayama
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Patent number: 8309031Abstract: A gas hydrate production apparatus capable of reacting a raw gas with a raw water to thereby form a slurry gas hydrate and capable of removing water from the slurry gas hydrate by means of a gravitational dewatering unit. The gravitational dewatering unit is one including a cylindrical first tower body; a cylindrical dewatering part disposed on top of the first tower body; a water receiving part disposed outside the dewatering part; and a cylindrical second tower body disposed on top of the dewatering part, wherein the cross-sectional area of the second tower body is continuously or intermittently increased upward from the bottom.Type: GrantFiled: February 14, 2011Date of Patent: November 13, 2012Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.Inventors: Yuichi Katoh, Shigeru Nagamori, Toru Iwasaki, Takashi Arai, Kiyoshi Horiguchi, Tetsuro Murayama, Akira Tokinosu, Masahiro Takahashi, Toshio Yamaki
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Publication number: 20120139896Abstract: An image rewriting process includes a first pulse application process for using a driving pulse signal with the pulse width of a first electric potential being a first width; a driving stop process for stopping generation of an electric field between pixel electrodes and a common electrode, performed after the first pulse application process; and a second pulse application process for using the driving pulse signal with the pulse width of the first electric potential being a second width, performed after the driving stop process.Type: ApplicationFiled: November 29, 2011Publication date: June 7, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Tetsuro Murayama
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Publication number: 20120139891Abstract: An image rewriting process of rewriting an image displayed by applying any one of a first electric potential or a second electric potential to each of a plurality of pixel electrodes and by moving electrophoretic particles by an electric field generated between the pixel electrodes and a common electrode includes a temperature determining process, and includes a first pulse application process which uses the driving pulse signal with the pulse width being a first width, a low temperature pulse application process, and a second pulse application process which uses the driving pulse signal with the pulse width being a second width, performed at the end. The low temperature pulse application process uses the driving pulse signal with the pulse width being the first width.Type: ApplicationFiled: November 29, 2011Publication date: June 7, 2012Applicant: SEIKO EPSON CORPORATIONInventor: Tetsuro Murayama
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Patent number: 8153075Abstract: The invention provides a gas hydrate production apparatus which can eliminate the need for an agitator in a generator, and at the same time, can make constant the percentage of gas hydration of the product. A shell-and-tube-type generator 2 is provided downstream of an ejector-type mixer 1 that stirs and mixes a raw-material gas g and a raw-material water w. In addition, partition walls 41 to 43 each causing a gas hydrate slurry to turn around are provided in each of end plates 37 and 38 placed respectively in the front and rear ends of the generator 2. Moreover, a dehydrator 3 including a cone-shaped filter 48 is provided downstream of the generator 2, and a drainage pipe 11 is provided to the dehydrator 3. Further, a flow regulating valve 12 is provided to the drainage pipe 11.Type: GrantFiled: October 3, 2007Date of Patent: April 10, 2012Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.Inventors: Shigeru Nagamori, Tetsuro Murayama, Hidenori Moriya, Takashi Arai, Nobutaka Oya
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Publication number: 20110304654Abstract: An electrophoretic display apparatus includes a first substrate and a second substrate; an electrophoretic layer that is allocated between the first substrate and the second substrate; and a first electrode and a second electrode that are each formed in an island shape, for each pixel, at the electrophoretic layer side of the first substrate, and are mutually independently driven. The first and second electrodes form a comb-teeth shaped electrode in a plan view, which include a plurality of branch portions and a trunk portion combining the plurality of branch portions, and each of first ones of the branch portions, which are located at respective edge portions of a pixel area, has a width smaller than a width of each of second ones of the branch portions, which are branch portions other than the first branch portions.Type: ApplicationFiled: June 7, 2011Publication date: December 15, 2011Applicant: SEIKO EPSON CORPORATIONInventors: Tetsuro MURAYAMA, Yukimasa ISHIDA
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Patent number: 8068091Abstract: An electrophoretic display device includes a pair of substrates, a pixel, a first electrode being formed on one of the substrates for the pixel, a second electrode being formed on the other of the substrates, and an electrophoretic element which is held between the first electrode and the second electrode. The pixel includes a pixel switching element which is connected to a scan line and a data line, a memory circuit which is connected to the pixel switching element, and a switch circuit which is interposed between the memory circuit and the first electrode. The memory circuit is connected with a first power source line and a second power source line, and the switch circuit is connected with a first control line and a second control line. The first power source line and the second power source line cross each other at a first position of the pixel, and the first control line and the second control line cross each other at a second position of the pixel.Type: GrantFiled: December 10, 2008Date of Patent: November 29, 2011Assignee: Seiko Epson CorporationInventors: Tetsuro Murayama, Yasuhiro Shimodaira
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Patent number: 8043579Abstract: A gas hydrate production apparatus capable of reacting a raw gas with a raw water to thereby form a slurry gas hydrate and capable of removing water from the slurry gas hydrate by means of a gravitational dewatering unit. This gravitational dewatering unit is one including a cylindrical first tower body; a cylindrical dewatering part disposed on top of the first tower body; a water receiving part disposed outside the dewatering part; and a cylindrical second tower body disposed on top of the dewatering part, wherein the cross-sectional area of the second tower body is continuously or intermittently increased upward from the bottom.Type: GrantFiled: April 5, 2006Date of Patent: October 25, 2011Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.Inventors: Yuichi Katoh, Shigeru Nagamori, Toru Iwasaki, Takashi Arai, Kiyoshi Horiguchi, Tetsuro Murayama, Akira Tokinosu, Masahiro Takahashi, Toshio Yamaki
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Publication number: 20110217210Abstract: A gas hydrate production apparatus capable of reacting a raw gas with a raw water to thereby form a slurry gas hydrate and capable of removing water from the slurry gas hydrate by means of a gravitational dewatering unit. The gravitational dewatering unit is one including a cylindrical first tower body; a cylindrical dewatering part disposed on top of the first tower body; a water receiving part disposed outside the dewatering part; and a cylindrical second tower body disposed on top of the dewatering part, wherein the cross-sectional area of the second tower body is continuously or intermittently increased upward from the bottom.Type: ApplicationFiled: February 14, 2011Publication date: September 8, 2011Inventors: Yuichi Katoh, Shigeru Nagamori, Toru Iwasaki, Takashi Arai, Kiyoshi Horiguchi, Tetsuro Murayama, Akira Tokinosu, Masahiro Takahashi, Toshio Yamaki
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Publication number: 20110194905Abstract: Provided is a conveying device used under a condition having a large pressure difference which is observed during a process such as a depressurizing process in an operation of manufacturing gas hydrate pellets and a method of controlling the same, the conveying device requiring less ancillary facilities, being small in size, and achieving high-speed processing while achieving secure blockage of pressure.Type: ApplicationFiled: November 12, 2009Publication date: August 11, 2011Applicant: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.Inventor: Tetsuro Murayama
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Publication number: 20110002759Abstract: A method and an apparatus for forcing a gas-solid two-phase substance are provided in which the amount of a gas returning to an ordinary-pressure side can be reduced to reduce the consumption of power necessary for gas compression. A solid raw material (a) stored at ordinary pressure is forced into a high-pressure vessel via a switch valve (4) in the following manner. The raw material (a) is accommodated into a rotary valve element (7) disposed in the switch valve (4). Thereafter, an entrained gas (c) present in interstices of raw material (a) is replaced with an incompressible fluid (d).Type: ApplicationFiled: March 25, 2009Publication date: January 6, 2011Inventors: Tetsuro Murayama, Shigeru Watanabe