Patents by Inventor Toru Miwa
Toru Miwa 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: 12111655Abstract: A multifunctional vehicle includes a traveling input device that is operated by a driver of the multifunctional vehicle; an information processing device that processes operation information of the traveling input device and that switches and executes a normal driving mode for driving the multifunctional vehicle and a remote driving mode for driving the other vehicle; wearable glasses that communicate with another vehicle directly or via the information processing device; and a communication device that communicate with the other vehicle. In the normal driving mode, a vehicle control of the multifunctional vehicle is executed using control information generated based on the operation information. In the remote driving mode, the control information is transmitted to the other vehicle via the communication device. The wearable glasses are configured to display a surrounding image of the other vehicle during execution of the remote driving mode by the information processing device.Type: GrantFiled: June 2, 2022Date of Patent: October 8, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toru Takashima, Takahiro Ogawa, Kenji Tadakuma, Keisuke Miwa, Shuichi Tamagawa, Takahiro Okano, Shun Ota, Yuki Nishikawa
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Publication number: 20240233841Abstract: A memory system programs memory cells connected to a selected word line by applying doses of programming and performing program-verify between doses. An efficient and low current program-verify operation includes: while scanning the results of a previous program-verify operation, ramp up voltages on the select lines for the next program-verify operation without waiting for the scan to complete and ramp up voltages on unselected word lines for the next program-verify operation following a step signal (so that voltage applied to the unselected word lines rise in steps) without waiting for the scan to complete.Type: ApplicationFiled: July 24, 2023Publication date: July 11, 2024Applicant: SanDisk Technologies LLCInventors: Abu Naser Zainuddin, Jiahui Yuan, Toru Miwa
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Publication number: 20240233826Abstract: A non-volatile memory system is configured to program non-volatile memory cells by applying doses of programming to the memory cells and performing a program-verify operation following each dose of programming. Each dose of programming and the corresponding program-verify operation following the dose of programming is referred to as a program loop. The program-verify operation comprises applying a verify reference voltage to a selected word line and applying an overdrive voltage to unselected word lines. To reduce the amount of current used, the memory system includes a loop dependent reduction in the ramp-up rate of the overdrive voltage applied to unselected word lines during program-verify.Type: ApplicationFiled: July 24, 2023Publication date: July 11, 2024Applicant: SanDisk Technologies LLCInventors: Abu Naser Zainuddin, Jiahui Yuan, Toru Miwa
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Publication number: 20240136001Abstract: A memory system programs memory cells connected to a selected word line by applying doses of programming and performing program-verify between doses. An efficient and low current program-verify operation includes: while scanning the results of a previous program-verify operation, ramp up voltages on the select lines for the next program-verify operation without waiting for the scan to complete and ramp up voltages on unselected word lines for the next program-verify operation following a step signal (so that voltage applied to the unselected word lines rise in steps) without waiting for the scan to complete.Type: ApplicationFiled: July 23, 2023Publication date: April 25, 2024Applicant: SanDisk Technologies LLCInventors: Abu Naser Zainuddin, Jiahui Yuan, Toru Miwa
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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: 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: 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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Patent number: 11875043Abstract: To reduce spikes in the current used by a NAND memory die during a write operation using smart verify, different amounts of delay are introduced into the loops of the programing algorithm. Depending on the number of verify levels following a programming pulse, differing amounts of wait time are used before biasing a selected word line to the verify levels or levels. For example, if only a single verify level is used, a shorter delay is used than if two verify levels are used.Type: GrantFiled: September 13, 2022Date of Patent: January 16, 2024Assignee: SanDisk Technologies LLCInventors: Abu Naser Zainuddin, Jiahui Yuan, Toru Miwa
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Publication number: 20230402113Abstract: A multi-stage method for programming an n-bit memory cell array using a fixed number of data latches is disclosed. The fixed number of data latches may be a reduced number of data latches in sense amplifier and data latch (SADL) peripheral circuitry than is required by existing programming techniques. As such, the die area taken up by the SADL circuitry can be reduced, which in turn, reduces overall chip area. The multi-stage programming method may include utilizing a first data latch to receive and store program page data and utilizing a second data latch to store bit information indicating which cells are to be targeted for the multi-stage programming. At each program stage, a respective program loop may be performed with respect to each threshold voltage distribution generated during a prior program stage to create two new threshold voltage distributions from the prior distribution.Type: ApplicationFiled: June 13, 2022Publication date: December 14, 2023Inventors: TORU MIWA, Fumiaki Toyama
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Patent number: 11625172Abstract: Apparatuses and techniques are described for programming data in memory cells while concurrently storing backup data. One or more initial pages of data are programmed into both a primary block and a first backup block in a first program pass. A power loss then occurs which can corrupt the data or otherwise prevent reading of the one or more initial pages of data from the primary block. The one or more initial pages of data are read from the first backup block and used to perform a second program pass in which one or more additional pages of data are programmed into the primary block. Single bit per cell data can be stored in a second backup block to decode the one or more initial pages of data as read from the first backup block.Type: GrantFiled: June 16, 2021Date of Patent: April 11, 2023Assignee: SanDisk Technologies LLCInventors: Xiang Yang, Toru Miwa, Ken Oowada, Gerrit Jan Hemink
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Patent number: 11551781Abstract: Apparatuses and techniques are described for programming data in memory cells while concurrently storing backup data. Initial pages of multiple bit per cell data are encoded to obtain at least first and second pages of single bit per cell data. The initial pages of multiple bit per cell data are programmed into a primary set of memory cells, while concurrently the first and second pages of single bit per cell data are programmed into first and second backup sets of memory cells, respectively. In the event of a power loss, the first and second pages of single bit per cell data are read from the first and second backup sets of memory cells, and decoded to recover the initial pages of multiple bit per cell data.Type: GrantFiled: June 16, 2021Date of Patent: January 10, 2023Assignee: SanDisk Technologies LLCInventors: Xiang Yang, Toru Miwa, Ken Oowada, Gerrit Jan Hemink
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Patent number: 11545221Abstract: Technology is disclosed herein for concurrently programming the same data pattern in multiple sets of non-volatile memory cells. Voltage are applied to bit lines in accordance with a data pattern. A select voltage is applied to drain select gates of multiple sets of NAND strings. The system concurrently applies a program pulse to control gates of a different set of selected memory cells in each respective set of the multiple sets of the NAND strings while the select voltage is applied to the drain select gates of the multiple sets of the NAND strings and the voltages are applied to the plurality of bit lines to concurrently program the data pattern into each set of the selected memory cells.Type: GrantFiled: June 28, 2021Date of Patent: January 3, 2023Assignee: SanDisk Technologies LLCInventors: Xiang Yang, Gerrit Jan Hemink, Ken Oowada, Toru Miwa
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Publication number: 20220406398Abstract: Apparatuses and techniques are described for programming data in memory cells while concurrently storing backup data. Initial pages of multiple bit per cell data are encoded to obtain at least first and second pages of single bit per cell data. The initial pages of multiple bit per cell data are programmed into a primary set of memory cells, while concurrently the first and second pages of single bit per cell data are programmed into first and second backup sets of memory cells, respectively. In the event of a power loss, the first and second pages of single bit per cell data are read from the first and second backup sets of memory cells, and decoded to recover the initial pages of multiple bit per cell data.Type: ApplicationFiled: June 16, 2021Publication date: December 22, 2022Applicant: SanDisk Technologies LLCInventors: Xiang Yang, Toru Miwa, Ken Oowada, Gerrit Jan Hemink
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Publication number: 20220404989Abstract: Apparatuses and techniques are described for programming data in memory cells while concurrently storing backup data. One or more initial pages of data are programmed into both a primary block and a first backup block in a first program pass. A power loss then occurs which can corrupt the data or otherwise prevent reading of the one or more initial pages of data from the primary block. The one or more initial pages of data are read from the first backup block and used to perform a second program pass in which one or more additional pages of data are programmed into the primary block. Single bit per cell data can be stored in a second backup block to decode the one or more initial pages of data as read from the first backup block.Type: ApplicationFiled: June 16, 2021Publication date: December 22, 2022Applicant: SanDisk Technologies LLCInventors: Xiang Yang, Toru Miwa, Ken Oowada, Gerrit Jan Hemink
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Patent number: 11342028Abstract: Apparatuses, systems, and methods are disclosed for concurrently programming non-volatile storage cells, such as those of an SLC NAND array. The non-volatile storage cells may be arranged into a first block comprising a first string of storage cells that intersects with a first word line at a first storage cell, a second block comprising a second string of storage cells that intersects with a second word line at a second storage cell, a bit line electrically connectable to the first string and the second string, and controller configured to apply a programming pulse, at an elevated voltage, to the first word line and second word line to concurrently program the first and second storage cells.Type: GrantFiled: April 12, 2021Date of Patent: May 24, 2022Assignee: SanDisk Technologies LLCInventors: Xiang Yang, Aaron Lee, Gerrit Jan Hemink, Ken Oowada, Toru Miwa
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Publication number: 20210358553Abstract: Technology is disclosed herein for concurrently programming the same data pattern in multiple sets of non-volatile memory cells. Voltage are applied to bit lines in accordance with a data pattern. A select voltage is applied to drain select gates of multiple sets of NAND strings. The system concurrently applies a program pulse to control gates of a different set of selected memory cells in each respective set of the multiple sets of the NAND strings while the select voltage is applied to the drain select gates of the multiple sets of the NAND strings and the voltages are applied to the plurality of bit lines to concurrently program the data pattern into each set of the selected memory cells.Type: ApplicationFiled: June 28, 2021Publication date: November 18, 2021Applicant: SanDisk Technologies LLCInventors: Xiang Yang, Gerrit Jan Hemink, Ken Oowada, Toru Miwa
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Patent number: 11177277Abstract: A non-volatile memory apparatus is provided and includes a substrate having a major surface extending longitudinally. A stack of first and second sets of word lines and insulating layers extends along and over the major surface longitudinally and alternating with and overlying one another vertically to define a device region. The first and second sets of word lines each respectively extends longitudinally beyond a first and second side of the device region a decreasing longitudinal distance from the device region as a vertical distance from the major surface increases to define first and second stepped contact regions. Word line contacts extend vertically in the first and second stepped contact regions. The second set of word lines in the first stepped contact region do not contact the word line contacts and the first set of word lines in the second stepped contact region do not contact the word line contacts.Type: GrantFiled: November 6, 2019Date of Patent: November 16, 2021Assignee: SanDisk Technologies LLCInventors: Naoki Ookuma, Hiroki Yabe, Koichiro Hayashi, Takuya Ariki, Toru Miwa
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Patent number: 11081192Abstract: A non-volatile memory device comprising a memory cell region having a plurality of co-planar memory cell planes arranged in a plane parallel to a semiconductor substrate, with each memory cell plane comprising a plurality of sub-planes disposed adjacent one another along an axis that is parallel to the substrate. Further, each memory cell plane comprises a plurality of sense amplifier regions arranged along the axis in an alternating pattern with the sub-planes such that adjacent to each sub-plane is a sense amplifier region and each sense amplifier region is operable with respect to at least a fraction of the bit lines of the two sub-planes immediately adjacent the sense amplifier region.Type: GrantFiled: October 30, 2019Date of Patent: August 3, 2021Assignee: SanDiskTechnologies LLCInventors: Hiroki Yabe, Koichiro Hayashi, Takuya Ariki, Yuki Fujita, Naoki Ookuma, Kazuki Yamauchi, Masahito Takehara, Toru Miwa
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Publication number: 20210233589Abstract: Apparatuses, systems, and methods are disclosed for concurrently programming non-volatile storage cells, such as those of an SLC NAND array. The non-volatile storage cells may be arranged into a first block comprising a first string of storage cells that intersects with a first word line at a first storage cell, a second block comprising a second string of storage cells that intersects with a second word line at a second storage cell, a bit line electrically connectable to the first string and the second string, and controller configured to apply a programming pulse, at an elevated voltage, to the first word line and second word line to concurrently program the first and second storage cells.Type: ApplicationFiled: April 12, 2021Publication date: July 29, 2021Applicant: SanDisk Technologies LLCInventors: Xiang Yang, Aaron Lee, Gerrit Jan Hemink, Ken Oowada, Toru Miwa
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Publication number: 20210142858Abstract: A random access memory is provided including a plane structure comprising a plurality of sense amplifiers, each including a local data latch, a pair of local busses connected to each of the data latches, a differential data bus, and a pair of redrivers connected between the pair of local busses and the differential data bus.Type: ApplicationFiled: November 13, 2019Publication date: May 13, 2021Applicant: SanDisk Technologies LLCInventors: Hiroki Yabe, Koichiro Hayashi, Takuya Ariki, Naoki Ookuma, Toru Miwa