Patents by Inventor Daisuke Shibata
Daisuke Shibata 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: 8656700Abstract: A failure of a filter is detected with a higher degree of accuracy. There are provided a filter that is arranged on an exhaust passage of an internal combustion engine for collecting a substance contained in an exhaust gas, a substance amount detection part that is arranged on the exhaust passage at a downstream side of the filter for detecting an amount of substance in the exhaust gas, a flow speed detection part that detects or estimates a flow speed of the exhaust gas which passes through the filter, and a determination part that makes a determination that the filter is in a failure, when the higher the flow speed of the exhaust gas passing through the filter, the larger a ratio of an amount of change in the amount of substance to an amount of change in the flow speed of the exhaust gas becomes.Type: GrantFiled: October 22, 2010Date of Patent: February 25, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Daisuke Shibata, Hiroshi Sawada, Toru Kidokoro, Taiga Hagimoto, Kazuya Takaoka
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Publication number: 20140050623Abstract: Apparatus for detecting deterioration of an NOx selective reduction catalyst in an exhaust passage of an internal combustion engine with improved accuracy, includes an NOx purification rate calculation unit for calculating the NOx purification rate in the NOx selective reduction catalyst based on the NOx concentration in the exhaust gas flowing into and out of the NOx selective reduction catalyst. A determination as to whether the NOx selective reduction catalyst is deteriorated is made based on the NOx purification rate at a time when the temperature of the NOx selective reduction catalyst is equal to or higher than a temperature (Tc0) at which the NOx purification rate will start to decrease with a rise in the temperature of the NOx selective reduction catalyst if the degree of deterioration of the NOx selective reduction catalyst is at the upper limit of an allowable range.Type: ApplicationFiled: April 12, 2011Publication date: February 20, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Taiga Hagimoto, Daisuke Shibata
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Publication number: 20140042457Abstract: A Schottky diode has: a semiconductor layer stack including a GaN layer formed over a substrate and an AlGaN layer formed on the GaN layer and having a wider bandgap than the GaN layer; an anode electrode and a cathode electrode which are formed at an interval therebetween on the semiconductor layer stack; and a block layer formed in a region between the anode electrode and the cathode electrode so as to contact the AlGaN layer. A part of the anode electrode is formed on the block layer so as not to contact the surface of the AlGaN layer. The barrier height between the anode electrode and the block layer is greater than that between the anode electrode and the AlGaN layer.Type: ApplicationFiled: October 21, 2013Publication date: February 13, 2014Applicant: PANASONIC CORPORATIONInventors: Daisuke SHIBATA, Yoshiharu ANDA
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Publication number: 20140020134Abstract: The present invention relates to a fruit-specific promoter, which is suitable for the expression in a broader range of developmental stages of a fruit. Provided is a fruit-specific promoter DNA, which consists of a nucleotide sequence having 85% or more identity with the nucleotide sequence as shown in SEQ ID NO: 1 or 2 and has promoter activity in mature-green fruits.Type: ApplicationFiled: March 30, 2011Publication date: January 16, 2014Applicants: INPLANTA INNOVATIONS INC., UNIVERSITY OF TSUKUBA, KAZUSA DNA RESEARCH INSTITUTEInventors: Nobuyo Itou, Hirofumi Kuroda, Ken-ichi Takane, Kou Aoki, Daisuke Shibata, Hiroshi Ezura, Kyoko Tanase
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Patent number: 8604516Abstract: A first group III nitride semiconductor layer has a low carbon concentration region having a carbon concentration of less than 1×1017 cm?3, and located in a region under an edge of a gate electrode closer to a drain electrode, a thickness d2 of the low carbon concentration region satisfies Vm/(110·d1)?d2<Vm/(110·d1)+0.5 where d1 is a thickness of a nitride semiconductor layer including the first group III nitride semiconductor layer and the second group III nitride semiconductor layer, and Vm is an operating breakdown voltage, and a ratio of Ron to Ron0, which is an index of a current collapse value, satisfies Ron/Ron0?3 where Ron0 is an on-state resistance in a relaxed state, and Ron is an on-state resistance measured 100 ?s after a transition from an off state to an on state under an operating voltage Vm.Type: GrantFiled: December 27, 2012Date of Patent: December 10, 2013Assignee: Panasonic CorporationInventors: Naohide Wakita, Kenichiro Tanaka, Masahiro Ishida, Satoshi Tamura, Daisuke Shibata
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Publication number: 20130213236Abstract: An object of the present invention is to detect any breakdown or failure of a particulate filter more appropriately. A failure detecting apparatus for detecting failure of a particulate filter according to the present invention comprises an acquiring section which acquires an amount of PM contained in an exhaust gas allowed to outflow from the particulate filter; a regeneration process executing section which executes a filter regeneration process for oxidizing and removing PM deposited in the particulate filter; and a failure judging section which judges that the particulate filter is in the failure state if a decreased amount of the amount of PM contained in the exhaust gas acquired by the acquiring section, during a predetermined period of time as started from a point in time at which the execution of the filter regeneration process performed by the regeneration process executing section is completed, is not equal to or larger than a predetermined reference amount.Type: ApplicationFiled: November 12, 2010Publication date: August 22, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuya Takaoka, Daisuke Shibata
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Publication number: 20130192208Abstract: A failure of a filter is detected with a higher degree of accuracy. There are provided a filter that is arranged on an exhaust passage of an internal combustion engine for collecting a substance contained in an exhaust gas, a substance amount detection part that is arranged on the exhaust passage at a downstream side of the filter for detecting an amount of substance in the exhaust gas, a flow speed detection part that detects or estimates a flow speed of the exhaust gas which passes through the filter, and a determination part that makes a determination that the filter is in a failure, when the higher the flow speed of the exhaust gas passing through the filter, the larger a ratio of an amount of change in the amount of substance to an amount of change in the flow speed of the exhaust gas becomes.Type: ApplicationFiled: October 22, 2010Publication date: August 1, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daisuke Shibata, Hiroshi Sawada, Toru Kidokoro, Taiga Hagimoto, Kazuya Takaoka
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Patent number: 8495861Abstract: An object of the present invention is to provide a technology that enables detection of a fault of a PM trapper with improved accuracy. In the present invention, a pressure sensor 20 that measures a differential pressure across a PM trapper 11 is provided, and a fault of a PM trapper is determined based on an amount of change in the differential pressure across the PM trapper 11 between two different operation states of an internal combustion engine 1 in which the ambient temperature around the pressure sensor 20 falls within a specific temperature range. Since variations in the offset error of the differential pressure sensor 20 caused by changes in the ambient temperature around the differential pressure sensor 20 is made small, the amount of change in the differential pressure across the PM trapper 11 can be measured more accurately, and a fault of the PM trapper 11 can be detected with improved accuracy.Type: GrantFiled: June 7, 2007Date of Patent: July 30, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Daisuke Shibata, Hiroshi Sawada, Keisuke Fukuoka
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Patent number: 8490385Abstract: A catalyst deterioration diagnosis system performs a diagnosis of deterioration of the oxidation catalyst based on a high-temperature-inflow-condition exhaust gas temperature and a low-temperature-inflow-condition exhaust gas temperature. The high-temperature-inflow-condition exhaust gas temperature is a temperature detected by a temperature sensor while the temperature of the exhaust gas that flows into the oxidation catalyst is in a high temperature region H while the reducing agent is supplied from the reducing agent supply means into the exhaust gas that flows into the oxidation catalyst. The low-temperature-inflow-condition exhaust gas temperature is a temperature detected by the temperature sensor while the temperature of the exhaust gas that flows into the oxidation catalyst is in a low temperature region L while the reducing agent is supplied from a reducing agent supply means into the exhaust gas that flows into the oxidation catalyst.Type: GrantFiled: July 22, 2009Date of Patent: July 23, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Miyoshi, Hiroshi Sawada, Daisuke Shibata
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Patent number: 8447703Abstract: A sensor device for detecting product quality conditions is attached to each product to be delivered, and constant monitoring is performed on quality conditions of stock products in a storage room of a delivery center for quality assurance. For products in a storage room of a delivery truck, constant monitoring is also performed on quality conditions thereof in the same manner. If a quality abnormality is found in a product in the storage room, information regarding product sensing items and information regarding the current location of each delivery truck are processed to select a replacement stock product less susceptible to recurrence of a similar quality abnormality at the time of redelivery.Type: GrantFiled: July 22, 2010Date of Patent: May 21, 2013Assignee: Hitachi, Ltd.Inventors: Naohiro Yuasa, Yohei Kawada, Daisuke Shibata
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Publication number: 20130098146Abstract: Provision is made for a catalyst that is arranged in an exhaust passage of an internal combustion engine and has an oxidation function, downstream side temperature detection means that detects the temperature of an exhaust gas at a downstream side from the catalyst, and addition means that adds a reducing agent into the exhaust gas from an upstream side from the catalyst, wherein there are also provided correlation value calculation means that calculates a correlation value which is correlated with an amount of change of the temperature detected by the downstream side temperature detection means when the reducing agent is added by the addition means and when a transient operation of the internal combustion engine is carried out, and determination means that determines a deterioration of the catalyst by making a comparison between the correlation value and a threshold value which indicates the deterioration of the catalyst.Type: ApplicationFiled: April 30, 2010Publication date: April 25, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daisuke Shibata, Hiroshi Sawada, Toru Kidokoro, Akihiko Itakura
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Patent number: 8405126Abstract: A semiconductor device includes a semiconductor layer stack formed on a substrate, a first ohmic electrode and a second ohmic electrode which are formed on the semiconductor layer stack, and are spaced from each other, a first control layer formed between the first ohmic electrode and the second ohmic electrode, and a first gate electrode formed on the first control layer. The first control layer includes a lower layer, an intermediate layer which is formed on the lower layer, and has lower impurity concentration than the lower layer, and an upper layer which is formed on the intermediate layer, and has higher impurity concentration than the intermediate layer.Type: GrantFiled: August 2, 2011Date of Patent: March 26, 2013Assignee: Panasonic CorporationInventors: Daisuke Shibata, Tatsuo Morita, Manabu Yanagihara, Yasuhiro Uemoto
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Patent number: 8359827Abstract: The invention intends to provide a technology which makes it possible to diagnose with higher accuracy whether or not abnormality occurs in a filter regeneration system causing excessive execution frequency of a regeneration process. The filter regeneration system initiates execution of the regeneration process, incase an estimated particulate matter (PM) accumulation amount at the filter reaches a pre-determined regeneration requiring accumulation amount; or in case the pressure upstream of the filter or the differential pressure across the filter reaches a pre-determined regeneration requiring value, the value being larger than the pressure or the differential pressure corresponding to the regeneration requiring accumulation amount. Then, the diagnosis is carried out based on a ratio of an estimated PM accumulation amount at the initiation of the execution of the regeneration process to the regeneration requiring accumulation amount.Type: GrantFiled: February 24, 2009Date of Patent: January 29, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Daisuke Shibata, Koichi Kitaura, Hiroshi Sawada, Tatsuya Tsuji
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Publication number: 20130014641Abstract: The present invention is intended to detect a failure of a PM filter with a higher degree of accuracy. The present invention is provided with: a PM trapping efficiency calculation part to calculate a PM trapping efficiency (which is a proportion of an amount of particulate matter trapped with respect to an amount of inflow particulate matter) based on an amount of inflow particulate matter obtained by an inflow particulate matter obtaining part, and an amount of outflow particulate matter detected by a PM sensor; and a failure detection part to make a determination that a failure has occurred in the PM filter, in cases where there has appeared a tendency for the PM trapping efficiency to decrease during a period of time until the execution of the following filter regeneration processing is started after the completion of execution of the filter regeneration processing.Type: ApplicationFiled: March 26, 2010Publication date: January 17, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuya Takaoka, Daisuke Shibata, Hiroshi Sawada, Toru Kidokoro
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Patent number: 8347604Abstract: The degree of deterioration of a catalyst is obtained accurately in cases where a plurality of catalysts is disposed at an exhaust passage of an internal combustion engine. Under the assumption that the degree of deterioration of a catalyst which is disposed at a location upstream of an NOx selective reduction catalyst and has an oxidizing ability is at a predetermined value, the ratio of NO2 in the NOx which inflows into the NOx selective reduction catalyst is estimated; the NOx removal rate of the NOx selective reduction catalyst is calculated a plurality of times at least until a local maximum value is obtained; and the degree of deterioration of the catalyst having an oxidizing ability is determined by comparison between the ratio of NO2 observed when the NOx removal rate of the NOx selective reduction catalyst reaches the local maximum value and a reference value of the ratio.Type: GrantFiled: March 31, 2009Date of Patent: January 8, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Taiga Hagimoto, Daisuke Shibata
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Publication number: 20120308862Abstract: A battery includes a positive plate, a negative plate and an insulative separator disposed between the positive plate and the negative plate. Each of the positive plate and the negative plate has a collector and an electrode layer disposed on a surface of the collector. The electrode layer contains an active material. At least one of the positive plate and the negative plate has cracks in a whole area of the electrode layer thereof or at a part of the electrode layer thereof, the part being away from a connector of the one to be coupled to an electrode at least by a predetermined distance. For example, the cracks are formed by drying the electrode layer at a predetermined drying rate.Type: ApplicationFiled: May 29, 2012Publication date: December 6, 2012Applicant: DENSO CORPORATIONInventors: Daisuke Shibata, Kazuo Ikuta, Masaya Nakamura
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Patent number: 8307699Abstract: An exhaust passage (15) of an internal-combustion engine (10) includes a selective reduction NOx catalyst (34) and an after-catalyst NOx sensor (50) for detecting a NOx concentration Cr at the downstream thereof. Reducing agent is selectively added from an addition valve (40) to the NOx catalyst. A NOx concentration Ce at the upstream side of the NOx catalyst is detected or estimated. NOx concentrations Cr and Ce before and after the NOx catalyst, which were detected or estimated during the stoppage of an addition of the reducing agent, are compared to each other to thereby determine an abnormality of the after-catalyst NOx sensor (50). An abnormality diagnosis is executed while the addition of reducing agent is being stopped to remove an influence by the NOx catalyst.Type: GrantFiled: May 21, 2008Date of Patent: November 13, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Sawada, Daisuke Shibata
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Patent number: 8302378Abstract: A temperature increasing degree of the catalytic outflow exhaust temperature at the time the exhaust air-fuel ratio is changed to the rich side is found in respect to each of a plurality of the catalytic inflow exhaust temperatures. A grade (S) of the temperature increasing degree is found based upon the inflow exhaust temperature and the temperature increasing degree to determine degradation of the catalyst based upon at least one of a maximum value (Smax) of the grade and the inflow exhaust temperature (Tinmax) corresponding to the maximum value. An accurate catalyst degradation diagnosis can be carried out since not only the temperature increasing degree but also the inflow exhaust temperature are taken into account.Type: GrantFiled: June 4, 2008Date of Patent: November 6, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Miyoshi, Daisuke Shibata
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Publication number: 20120268791Abstract: A technique can prevent a parameter that is not to be read and set from history information and related to image formation from being read and reset from the history information. A method for controlling an image forming apparatus, includes setting a parameter for an adjustment item related to image formation, determining whether the adjustment item corresponding to the set parameter includes a storage inhibition item, performing control to store the set parameter as history information in a storing unit in a case where it is determined that the adjustment item does not include the storage inhibition item, and not to store the set parameter unit as the history information to the storing unit in a case where it is determined that the adjustment item includes the storage inhibition item, and setting the parameter stored in the storing unit to the adjustment item related to the image formation.Type: ApplicationFiled: April 18, 2012Publication date: October 25, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Daisuke Shibata
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Patent number: 8240130Abstract: In an exhaust purification system having a urea addition device adding a urea aqueous solution to an NOx catalyst of selective reduction type provided in an exhaust passage in an internal combustion engine, a sensor detecting an ammonia concentration is provided at the downstream side of the NOx catalyst. During fuel cut, a predetermined amount of urea aqueous solution is added. Then, based on a sensor output obtained at this time, an abnormality in at least one of the urea addition device and the urea aqueous solution is detected. The addition of the urea aqueous solution during the fuel cut prevents reactive consumption between urea and NOx. The sensor output corresponding to the amount of the urea aqueous solution is obtained. This output condition is compared with a normal one to allow determination of whether or not an appropriate amount of urea aqueous solution of appropriate quality has been added.Type: GrantFiled: November 14, 2008Date of Patent: August 14, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroshi Sawada, Daisuke Shibata