Patents by Inventor Takashi Murai
Takashi Murai 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: 11976729Abstract: A shaft sealing structure includes a plurality of V-packings that are stacked in multiple stages, and each of the V-packings is formed of a thick-walled annular top portion, a thin-walled inner side skirt portion, and a thin-walled outer side skirt portion. Adjacent ones of the top portions abut against each other, adjacent ones of the inner side skirt portions do not interfere with each other, and adjacent ones of the outer side skirt portions do not interfere with each other.Type: GrantFiled: March 21, 2022Date of Patent: May 7, 2024Assignee: SMC CORPORATIONInventors: Takayuki Murai, Takashi Arakawa
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Publication number: 20240128134Abstract: A semiconductor wafer includes pairs of semiconductor dies having test pads which are electrically coupled to each other to enable testing of pairs of semiconductor dies together at the same time. In this way, even wafers having large numbers of semiconductor dies can be tested with a semiconductor test assembly in a single touch-down test process.Type: ApplicationFiled: July 13, 2023Publication date: April 18, 2024Inventors: Toru Miwa, Takashi Murai, Hiroyuki Ogawa
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Publication number: 20240128132Abstract: A semiconductor wafer includes pairs of semiconductor dies having test pads which are electrically coupled to each other to enable testing of pairs of semiconductor dies together at the same time. In this way, even wafers having large numbers of semiconductor dies can be tested with a semiconductor test assembly in a single touch-down test process.Type: ApplicationFiled: July 13, 2023Publication date: April 18, 2024Applicant: SanDisk Technologies LLCInventors: Toru Miwa, Takashi Murai, Hiroyuki Ogawa, Nisha Padattil Kuliyampattil
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Publication number: 20240125846Abstract: A semiconductor wafer includes pairs of semiconductor dies having test pads which are electrically coupled to each other to enable testing of pairs of semiconductor dies together at the same time. In this way, even wafers having large numbers of semiconductor dies can be tested with a semiconductor test assembly in a single touch-down test process.Type: ApplicationFiled: July 13, 2023Publication date: April 18, 2024Applicant: SanDisk Technologies LLCInventors: Toru Miwa, Takashi Murai, Hiroyuki Ogawa, Nisha Padattil Kuliyampattil
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Publication number: 20240125389Abstract: A shaft sealing structure includes a V-packing; a first guide bush attached to an inner circumference of the holder; and a scraper arranged at an end of the holder. The V-packing is formed of a thick-walled top portion, a thin-walled inner side skirt portion extending diagonally inward from the top portion, and a thin-walled outer side skirt portion extending diagonally outward from the top portion. The inner side skirt portion slidably contacts an outer surface of the rod at a distal end of the inner side skirt portion, and the outer side skirt portion abuts against an inner surface of the holder at a distal end of the outer side skirt portion. The top portion is sandwiched between the scraper and the first guide bush, and the inner and outer side skirt portions are freely deformable inside a space formed between the first guide bush and the scraper.Type: ApplicationFiled: December 22, 2023Publication date: April 18, 2024Applicant: SMC CORPORATIONInventors: Takayuki MURAI, Takashi ARAKAWA
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Publication number: 20240100093Abstract: Provided is a ??T cell for securing the purity and number of cells sufficient for treatment. Also provided is a method of generating the ??T cell. More specifically, provided are homogeneous ??T cells excellent in that the ??T cells are not affected by exhaustion of the cells. The foregoing is achieved by ??T cells obtained by subjecting induced pluripotent stem cells (iPS cells) to differentiation induction treatment. Specifically, the foregoing is achieved by ??T cells generated by subjecting iPS cells having a rearranged ??TCR gene (??TCR-type iPS cells) to differentiation induction treatment. According to the method of generating the ??T cell of the present invention, there can be provided ??T cells and a cell population of ??T cells that have an excellent function of having antigen-specific cytotoxic activity in a MHC-unrestricted manner, and that are more homogeneous and have a higher effect than ??T cells separated from peripheral blood.Type: ApplicationFiled: February 4, 2022Publication date: March 28, 2024Applicant: NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITYInventors: Takashi AOI, Nobuyuki MURAI
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Patent number: 11397635Abstract: For a non-volatile memory die formed of multiple blocks of memory cells, the memory die has a multi-bit bad block flag for each block stored on the memory die, such as in a fuse ROM. For each block, the multi-bit flag indicates if the block has few defects and is of the highest reliability category, is too defective to be used, or is in of one of multiple recoverability categories. The multi-bit bad blocks values can be determined as part a test process on fresh devices, where the test of a block can be fail stop for critical category errors, but, for recoverable categories, the test continues and tracks the test results to determine a recoverability category for the block and write this onto the die as a bad block flag for each block. These recoverability categories can be incorporated into wear leveling operations.Type: GrantFiled: December 9, 2019Date of Patent: July 26, 2022Assignee: SanDisk Technologies LLCInventors: Shih-Chung Lee, Takashi Murai, Ken Oowada
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Publication number: 20210173734Abstract: For a non-volatile memory die formed of multiple blocks of memory cells, the memory die has a multi-bit bad block flag for each block stored on the memory die, such as in a fuse ROM. For each block, the multi-bit flag indicates if the block has few defects and is of the highest reliability category, is too defective to be used, or is in of one of multiple recoverability categories. The multi-bit bad blocks values can be determined as part a test process on fresh devices, where the test of a block can be fail stop for critical category errors, but, for recoverable categories, the test continues and tracks the test results to determine a recoverability category for the block and write this onto the die as a bad block flag for each block. These recoverability categories can be incorporated into wear leveling operations.Type: ApplicationFiled: December 9, 2019Publication date: June 10, 2021Applicant: SanDisk Technologies LLCInventors: Shih-Chung Lee, Takashi Murai, Ken Oowada
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Patent number: 9453534Abstract: A cage 20 of a tapered roller bearing 1 holds tapered rollers 30 by plural pockets formed between a large-diameter side annular part 22 and a small-diameter side annular part 23 arranged in an axial direction, and plural bar parts 24 which axially join the large-diameter side annular part 22 and the small-diameter side annular part 23 and are circumferentially formed at substantially an equal distance. A value of a ratio of a cross section modulus of the small-diameter side annular part 23 of the cage 20 to a cross section modulus of the large-diameter side annular part 22 of the cage 20 is values from 0.5 to 1.5 (both inclusive).Type: GrantFiled: January 23, 2014Date of Patent: September 27, 2016Assignee: NSK LTD.Inventors: Satoshi Ushimaru, Takashi Murai
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Publication number: 20150369289Abstract: A cage 20 of a tapered roller bearing 1 holds tapered rollers 30 by plural pockets formed between a large-diameter side annular part 22 and a small-diameter side annular part 23 arranged in an axial direction, and plural bar parts 24 which axially join the large-diameter side annular part 22 and the small-diameter side annular part 23 and are circumferentially formed at substantially an equal distance. A value of a ratio of a cross section modulus of the small-diameter side annular part 23 of the cage 20 to a cross section modulus of the large-diameter side annular part 22 of the cage 20 is values from 0.5 to 1.5 (both inclusive).Type: ApplicationFiled: January 23, 2014Publication date: December 24, 2015Applicant: NSK LTD.Inventors: Satoshi USHIMARU, Takashi MURAI
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Patent number: 9210620Abstract: When performing a handover of a user equipment, a base station selects one of first and second algorithms based on a handover state of the user equipment. Then, the base station determines a format of a communication channel with the user equipment based on the selected algorithm and quality of communication with the user equipment.Type: GrantFiled: June 20, 2013Date of Patent: December 8, 2015Assignee: FUJITSU LIMITEDInventors: Takashi Murai, Masaru Kabashima
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Publication number: 20140036867Abstract: When performing a handover of a user equipment, a base station selects one of first and second algorithms based on a handover state of the user equipment. Then, the base station determines a format of a communication channel with the user equipment based on the selected algorithm and quality of communication with the user equipment.Type: ApplicationFiled: June 20, 2013Publication date: February 6, 2014Inventors: Takashi MURAI, Masaru KABASHIMA
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Publication number: 20140023893Abstract: According to one embodiment, a secondary battery device includes a plurality of secondary battery cells and a resin case including a plurality of wall portions defining a plurality of accommodation sections, which are configured to individually accommodate the secondary battery cells. At least one of the wall portions defining each of the accommodation sections includes a plurality of pressure springs molded integrally with the wall portion from a synthetic resin and configured to press and position each of the secondary battery cells accommodated in the accommodation sections.Type: ApplicationFiled: September 19, 2013Publication date: January 23, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Hideo Shimizu, Noboru Koike, Takashi Murai, Nagaaki Muro, Tadashi Shudo, Nobumitsu Tada
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Publication number: 20130302663Abstract: According to one embodiment provides an assembled battery which comprises electric cells each having a protruding electrode terminal, a bus bar which is connected to the electrode terminal, also electrically connected to the electrode terminal, and comprises an accommodating portion that has an opening and accommodates the electrode terminal along a protruding direction of the protruding portion from the opening, and a protruding portion which is formed on one of a peripheral surface of the electrode terminal along the protruding direction and an inner surface of the accommodating portion along the protruding direction, protrudes toward the other of the peripheral surface and the inner surface, extends in the protruding direction, and comes into contact with the other.Type: ApplicationFiled: March 15, 2013Publication date: November 14, 2013Applicant: Kabushiki Kaisha ToshbaInventors: Ryuuichi TERAMOTO, Noboru Koike, Yasuyuki Nagase, Hideo Shimizu, Takashi Murai, Takahiro Terada
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Publication number: 20130244089Abstract: According to one embodiment, a secondary battery device includes a secondary battery cell, a case configured to accommodate the secondary battery cell, and foam coating layers sandwiched between an outer surface of the secondary battery cell and an inner surface of the case and configured to hold the secondary battery cell.Type: ApplicationFiled: March 12, 2013Publication date: September 19, 2013Inventors: Hideo Shimizu, Noboru Koike, Takashi Murai, Yasuyuki Nagase, Tadashi Shudo, Satoru Nawa, Takashi Kobayashi, Kazuyuki Kuroda
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Patent number: 8425120Abstract: Disclosed herein is an electrolytic erosion preventing insulated rolling bearing and a manufacturing method thereof. In one embodiment, the electrolytic erosion preventing insulated rolling bearing includes an insulating coating being a ceramic coating layer including alumina as the main component and 0.01 to 0.2 percent by weight titanium oxide with the alumina having a particle size ranging from 10 to 50 ?m and average particle size ranging from 15 to 25 ?m.Type: GrantFiled: October 26, 2006Date of Patent: April 23, 2013Assignee: NSK Ltd.Inventors: Katsuhiro Konno, Kenji Kotaki, Takashi Murai, Osamu Fujii, Tetsuo Watanabe, Takayuki Matsushita
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Patent number: 8165569Abstract: The present invention provides a new method for distributing video information to a mobile phone based on push technology where a new function of a mobile phone is utilized sufficiently. In case that a user has registered that the user makes a request for a video information distribution service about a specific area to a user management sever in advance, when a mobile phone of the user exists in the specific area, video information is distributed from a video contents server to the mobile phone of the user based on push technology. Alternatively, when traffic of a radio channel connected to the mobile phone carried by the user is lower than a predetermined threshold, video information is distributed from a video contents server to the mobile phone based on push technology.Type: GrantFiled: February 20, 2004Date of Patent: April 24, 2012Assignee: Alcatel LucentInventors: Takashi Murai, Hiroki Hayashi
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Patent number: 8007184Abstract: There is realized a self-aligning roller bearing with retainer that stabilizes the orientation of spherical rollers and prevents these spherical rollers from skewing, and which can be rotated at high speed, and furthermore which enables efficient lubricant feed into pockets 9. By rotating a turning tool 14 as it revolves, the surfaces on both sides in the circumferential direction of respective column sections are processed into concave curved surfaces that oppose a rolling surface of the respective spherical rollers across a pocket clearance into which lubricant oil can be fed. The length of the column sections 8c is less than the length in the axial direction of the spherical rollers, and greater than a half of the length, and an end portion of the side surface in the circumferential direction of the respective column sections 8c projects further in the circumferential direction than an intermediate portion thereof, and the spherical rollers are embraced in the pockets 9.Type: GrantFiled: November 22, 2005Date of Patent: August 30, 2011Assignee: NSK Ltd.Inventors: Takashi Murai, Toshiyuki Tanaka, Masatake Ichimaru
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Publication number: 20090304318Abstract: In order to ensure high levels of insulation performance, and low cost, and have an excellent external appearance, as a ceramic constituting an insulating coating 6 being a ceramic coating layer, one with alumina as its main component, and in which the content of titanium oxide is limited to 0.01 to 0.2 percent by weight is used. Moreover, a particle size of ceramic forming the coating layer is 10 to 50 ?m, and average particle size is 15 to 25 ?m. By limiting the content of titanium oxide, the insulating coating 6 can be made thin, and by limiting the particle size the film thickness accuracy can be improved, thus simplifying finishing. Moreover, by mixing of titanium oxide, deterioration of the external appearance after sealing can be prevented. As a result, the above problem is solved.Type: ApplicationFiled: October 26, 2006Publication date: December 10, 2009Applicant: NSK LTDInventors: Katsuhiro Konno, Kenji Kotaki, Takashi Murai, Osamu Fujii, Tetsuo Watanabe, Takayuki Matsushita
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Patent number: RE48586Abstract: The contact portion of the end face of a conical roller, which is a portion to be slidingly contacted with a collar portion, is ground such that the outer contour line of the section thereof has a continuously curved line which passes through at least not only the first point but also between the third position and fourth position.Type: GrantFiled: January 22, 2019Date of Patent: June 8, 2021Assignee: NSK LTD.Inventors: Takashi Murai, Shinichi Tsunashima, Osamu Fujii