Patents by Inventor Tatsuya Asai

Tatsuya Asai 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).

  • Publication number: 20220366346
    Abstract: A document evaluation apparatus acquires multiple judgement rules, each of which associates a condition for values of one or more characteristic variables with a document evaluation result, the one or more characteristic variables being amongst multiple characteristic variables that includes one or more first characteristic variables each indicating an occurrence frequency of words in a document and one or more second characteristic variables each indicating an attribute of a business operation corresponding to a document. The document evaluation apparatus calculates values of the characteristic variables corresponding to an evaluation subject document, and selects, amongst the judgement rules, a judgement rule whose condition matches the calculated values of the evaluation subject document and includes at least one of the one or more first characteristic variables. The document evaluation apparatus generates an evaluation result of the evaluation subject document based on the selected judgement rule.
    Type: Application
    Filed: July 24, 2022
    Publication date: November 17, 2022
    Applicant: FUJITSU LIMITED
    Inventors: Takashi Yanase, Tatsuya Asai
  • Publication number: 20220353269
    Abstract: An information processing apparatus includes a first communications connector configured to implement first data communications connection between a first transmission terminal specified by first identification information and a second transmission terminal specified by second identification information when authentication of the first transmission terminal is established, an identification information acquisition part configured to acquire third identification information and fourth identification information by referring to correspondence information registering the third identification information in association with the first identification information, and the fourth identification information in association with the second identification information when acquiring a second data communications connecting request including the first identification information and the second identification information from the first transmission terminal, and a connection request part configured to transmit the second data
    Type: Application
    Filed: July 15, 2022
    Publication date: November 3, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Takahiro ASAI, Osamu TAKAYASU, Tatsuya NAGASE
  • Patent number: 11471758
    Abstract: An illumination device according to one or more embodiments may include: a light guide plate unit having a front light guide plate and a rear light guide plate; a light projecting unit having an LED configured to supply light to the front light guide plate and the rear light guide plate; a moving mechanism configured to cause the light guide plate unit to reciprocate in a depth direction; and a detector having a detection region in front of the light guide plate unit in the depth direction and configured to detect the presence or absence of an object without contacting. The moving mechanism may move the light guide plate unit in accordance with a detection result of the detector.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: October 18, 2022
    Assignee: OMRON Corporation
    Inventors: Hiroyuki Onitsuka, Takahiro Ono, Tatsuya Adachi, Rei Asai, Takehiro Agata
  • Publication number: 20220298592
    Abstract: A low-strength steel sheet for hot stamping according to an aspect of the present invention satisfies a predetermined chemical composition, the Ac3 point (° C.) represented by Equation (1) is 890° C. or more, and an area ratio of ferrite at a depth to be ¼ of a steel sheet thickness is 80% or more. Ac3 point (° C.)=910?203×[C]1/2+44.7×[Si]?30×[Mn]+700×[P]+400×[Al]+400×[Ti] . . . (1) In Equation (1), [C], [Si], [Mn], [P], [Al], and [Ti] are values denoting the percentage contents of C, Si, Mn, P, Al, and Ti in terms of % by mass, respectively.
    Type: Application
    Filed: August 18, 2020
    Publication date: September 22, 2022
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Sae HAMAMOTO, Tatsuya ASAI
  • Patent number: 11431718
    Abstract: An information processing apparatus includes a first communications connector configured to implement first data communications connection between a first transmission terminal specified by first identification information and a second transmission terminal specified by second identification information when authentication of the first transmission terminal is established, an identification information acquisition part configured to acquire third identification information and fourth identification information by referring to correspondence information registering the third identification information in association with the first identification information, and the fourth identification information in association with the second identification information when acquiring a second data communications connecting request including the first identification information and the second identification information from the first transmission terminal, and a connection request part configured to transmit the second data
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: August 30, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takahiro Asai, Osamu Takayasu, Tatsuya Nagase
  • Publication number: 20220250131
    Abstract: To establish a method for obtaining a hot-press-formed steel member, which exhibits high strength, high tensile elongation (ductility) and high bendability, thereby having excellent deformation characteristics at the time of collision crush (crashworthiness), and which is capable of ensuring excellent delayed fracture resistance. A method for producing a hot-press-formed steel member by heating a steel sheet, which has a chemical component composition containing 0.10% (% by mass, and hereinafter the same shall apply) to 0.30% (inclusive) of C, 1.0% to 2.5% (inclusive) of Si, 1.0% to 3.0% (inclusive) of Si and Al in total and 1.5% to 3.0% (inclusive) of Mn, with the balance consisting of iron and unavoidable impurities, and hot press forming the steel sheet one or more times.
    Type: Application
    Filed: April 25, 2022
    Publication date: August 11, 2022
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Takayuki YAMANO, Jiro IWAYA, Noriyuki JIMBO, Tatsuya ASAI, Naoki MIZUTA
  • Patent number: 11398128
    Abstract: An illumination device according to one or more embodiments may include: a light guide plate unit comprising a front light guide plate and a rear light guide plate arranged in a depth direction at a predetermined interval, and a light projecting unit arranged at a side of the light guide plate unit. The light projecting unit may comprise an LED in an amount of one piece among the front light guide plate and the rear light guide plate; and a moving mechanism configured to cause the light guide plate unit to reciprocate in the depth direction to cause a light incident surface of either one of the front light guide plate and the rear light guide plate to be opposed to the light projecting unit.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: July 26, 2022
    Assignee: OMRON CORPORATION
    Inventors: Hiroyuki Onitsuka, Takahiro Ono, Tatsuya Adachi, Rei Asai, Takehiro Agata
  • Patent number: 11365466
    Abstract: Provided is a method for manufacturing a steel member through hot press forming using a steel sheet that contains a comparatively large amount of Si. The steel sheet includes, in mass ratio, C: 0.15% to 0.35%, Si: 1.0% to 3.0%, Mn: 1.0% to 3.0%, Al: more than 0% up to 0.10%, Ti: ([N]×48/14)% to 0.10% (where [N] denotes the amount of N in the steel sheet), B: 5 ppm to 50 ppm, P: more than 0% to less than 0.015%, S: more than 0% up to 0.010%, and N: more than 0% up to 0.010%, the balance being iron and unavoidable impurities. The average oxygen concentration from an outermost surface of the steel sheet down to a depth of 10 ?m in a sheet thickness direction is 0.70 mass % or higher.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: June 21, 2022
    Assignee: Kobe Steel, Ltd.
    Inventors: Tatsuya Asai, Naoki Mizuta, Hiroyuki Omori, Takeshi Kojima
  • Patent number: 11344941
    Abstract: In a method for obtaining a hot-press-formed steel member, a steel sheet containing 0.10-0.30 mass % of C, 1.0-2.5 mass % of Si, 1.0-3.0 mass % of Si and Al in total, and 1.5-3.0 mass % of Mn is heated at a heating temperature of not less than the Ac3 transformation point. The steel sheet is hot-press formed for one or more times. The starting temperature of the hot pressing is not more than the heating temperature but not less than the Ms point. The average cooling rate from (Ms point?150)° C. to 40° C. is 5° C./s or less. The hot-press-formed steel member has high strength, high tensile elongation, high bendability, excellent deformation characteristics at the time of collision crush, and excellent delayed fracture resistance.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: May 31, 2022
    Assignee: Kobe Steel, Ltd.
    Inventors: Takayuki Yamano, Jiro Iwaya, Noriyuki Jimbo, Tatsuya Asai, Naoki Mizuta
  • Publication number: 20210283892
    Abstract: A manufacturing method of a laminate for manufacturing a fuel cell which uses a roll-to-roll technique includes: a first step of preparing a first laminate formed by stacking the release layer, the electrolyte membrane and an electrode layer in this order on a back sheet, a second step of stacking and bonding a gas diffusion layer on the electrode layer of the first laminate to obtain a second laminate, and a third step of peeling the back sheet from the second laminate to obtain a third laminate; and the bonding temperature in the second step is less than 170° C., and a tension X (N) applied to the back sheet, and a conveyance speed Y (m/min) at which the second step to the third step are continuously executed satisfy a following equation (1). Y?12.09exp (?0.15X) ??. . . (1).
    Type: Application
    Filed: March 10, 2021
    Publication date: September 16, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Teppei IKEDA, Tatsuya ASAI, Kazuya OTSU
  • Publication number: 20210054488
    Abstract: A steel plate for hot stamping contains, in % by mass, C: 0.25% or more and 0.4% or less, Si: 1.05% or more and 1.4% or less, Mn: 0% or more and 1.4% or less, Cr: 0.6% or more and 3.0% or less, P: 0% or more and 0.03% or less, S: 0% or more and 0.02% or less, Al: 0.01% or more and 1% or less, N: 0% or more and 0.01% or less, B: 0.0005% or more and 0.005% or less, Ti: 0.005% or more and 0.1% or less, and iron and inevitable impurities as remainder. This steel plate for hot stamping exhibits excellent hardness stability in addition to a balance between strength and toughness as a relational expression of [C]2/9[Si]+7/9[Mn]+8/9[Cr]?7/4>0 is satisfied.
    Type: Application
    Filed: March 19, 2019
    Publication date: February 25, 2021
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Haruka ARAKI, Sae HAMAMOTO, Tatsuya ASAI
  • Publication number: 20200364744
    Abstract: A non-transitory computer-readable recording medium stores therein a prediction program that causes a computer to execute a process including obtaining a machine learning model trained by using training data, the machine learning model predicting presence or absence of purchase actions or predetermined actions of users corresponding to feature information on the users, the training data including feature information on users and information indicating the presence or the absence of the purchase actions of commercial products or the predetermined actions, receiving input of a budget amount in an entry field displayed on a display in association with a user group including users including a common feature in the feature information, and displaying, in association with the budget amount on the display, feature information on the users included in the user group corresponding to the entry field.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 19, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Keisuke GOTO, Tatsuya Asai, Kotaro Ohori, YOSHINOBU SHIOTA
  • Publication number: 20200279178
    Abstract: A non-transitory computer-readable recording medium stores therein an allocation program that causes a computer to execute a process including: performing, by using a part of data including an objective variable and one or more explanatory variables corresponding to the objective variable as training data, training of a model that predicts the objective variable from the explanatory variables of the data; classifying test data obtained by excluding the training data from the data into a group according to a classification condition regarding at least a part of the explanatory variables of the data; predicting the objective variable from the explanatory variables of the test data using the trained model for each of groups by which classification has been performed at the classifying; and calculating a predetermined resource amount to be allocated to each of the groups based on the objective variable for each of the groups predicted at the predicting.
    Type: Application
    Filed: February 20, 2020
    Publication date: September 3, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Keisuke GOTO, Tatsuya Asai, Hiroaki Iwashita, Kotaro Ohori, YOSHINOBU SHIOTA
  • Publication number: 20200279141
    Abstract: A non-transitory computer-readable recording medium stores therein an extraction program that causes a computer to execute a process including: generating a plurality of combinations of conditions relating to a plurality of item values included in data; calculating an index value that indicates a degree of cooccurrence between a specified response variable and each of the plurality of combinations, by using a machine learning model that estimates a response variable from the plurality of item values, the machine learning model having been trained by using the data; and extracting a specific combination from among the plurality of combinations based on any one of the condition and the index value.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 3, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Tatsuya Asai, Keisuke GOTO, Hiroaki Iwashita, Kotaro Ohori
  • Publication number: 20200151190
    Abstract: An apparatus decomposes a first binary tree pattern into combinations of multiple binary tree units in accordance with a predetermined procedure. When a second binary tree pattern configured as a combination of binary tree units that are among the multiple binary tree units and include a top binary tree unit of the multiple binary units is associated with a subset of a target binary tree data, the apparatus searches the target binary tree data for the first binary tree pattern by using positions of the subset within the target binary tree data.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 14, 2020
    Applicant: FUJITSU LIMITED
    Inventor: Tatsuya Asai
  • Publication number: 20200095660
    Abstract: Provided is a method for manufacturing a steel member through hot press forming using a steel sheet that contains a comparatively large amount of Si. The steel sheet includes, in mass ratio, C: 0.15% to 0.35%, Si: 1.0% to 3.0%, Mn: 1.0% to 3.0%, Al: more than 0% up to 0.10%, Ti: ([N]×48/14)% to 0.10% (where [N] denotes the amount of N in the steel sheet), B: 5 ppm to 50 ppm, P: more than 0% to less than 0.015%, S: more than 0% up to 0.010%, and N: more than 0% up to 0.010%, the balance being iron and unavoidable impurities. The average oxygen concentration from an outermost surface of the steel sheet down to a depth of 10 ?m in a sheet thickness direction is 0.70 mass % or higher.
    Type: Application
    Filed: November 25, 2019
    Publication date: March 26, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Tatsuya Asai, Naoki Mizuta, Hiroyuki Omori, Takeshi Kojima
  • Publication number: 20200090076
    Abstract: A learning device creates a plurality of decision trees, using pieces of training data respectively including an explanatory variable and an objective variable, which are configured by a combination of the explanatory variables and respectively estimate the objective variable based on true or false of the explanatory variables. The learning device creates a linear model that is equivalent to the plurality of decision trees, and lists all terms configured by a combination of the explanatory variables without omission. The learning device outputs a prediction result by using the linear model from input data.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 19, 2020
    Applicant: FUJITSU LIMITED
    Inventors: Takashi KATOH, Hiroaki Iwashita, Kotaro Ohori, Tatsuya Asai, Hikaru Yokono
  • Patent number: 10544489
    Abstract: A high-strength steel sheet has a chemical composition including 0.05% to 0.3% of C, 1% to 3% of Si, 0.5% to 3% of Mn, 0% to 0.1% of P, 0.001% to 0.1% of Al, and 0.002% to 0.03% of N, in mass percent; further includes iron and impurities; and has a structure including 50% to 90% of bainitic ferrite, 5% to 20% of retained austenite (?R), a total of 10% to 50% of martensite and the retained austenite, and 0% to 40% of polygonal ferrite, in area percent based on the entire structure. The retained austenite has a carbon content (C?R) of 0.5% to 1.2% by mass, an average equivalent circle diameter of 0.2 to 2 ?m, and an average aspect ratio (maximum diameter/minimum diameter) of less than 3.0. The high-strength steel sheet excels both in elongation and deep drawability while having a strength of 980 MPa or more.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: January 28, 2020
    Assignee: Kobe Steel, Ltd.
    Inventors: Elijah Kakiuchi, Toshio Murakami, Hideo Hata, Tatsuya Asai, Naoki Mizuta
  • Patent number: 10545961
    Abstract: A data processing method includes steps of; allowing establishment of a first flag or a second flag for each of a plurality of items where corresponding values are inputted sequentially; upon detecting that a value associated with an item where the first flag is established in an Nth place is inputted and that a value associated with an item where the second flag is established in an Mth place (M is equal to or larger than N) is inputted, executing a predetermined processing to values in a range from the value that is inputted by associating with the item where the first flag is established in the Nth place to the value that is inputted by associating with the item where the second flag is established in the Mth place; and executing a processing of outputting a processed result in order from the item in the Nth place.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: January 28, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Shinichiro Tago, Takashi Katoh, Tatsuya Asai, Hiroya Inakoshi, Masataka Matsuura
  • Patent number: 10401185
    Abstract: An apparatus acquires a first piece of trajectory information from among plural pieces of trajectory information, and acquires a first planar graph from among one or more planar graphs. The apparatus generates a second planar graph, based on the first planar graph and plural pieces of position information included in the first piece of trajectory information, and extracts, from among the plural pieces of trajectory information, second pieces of trajectory information indicating trajectories passing a difference portion between the first and second planar graphs. For each of candidate graphs each obtained by excluding a reduction set of edges from the second planar graph, the apparatus calculates optimality of the each candidate graph with which an addition set of trajectories indicated by the first and second pieces of trajectory information are associated, and outputs one of the candidate graphs determined based on the calculated optimality.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: September 3, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Hiroya Inakoshi, Hiroaki Morikawa, Tatsuya Asai, Junichi Shigezumi