Patents by Inventor Tomoaki Kobayashi
Tomoaki Kobayashi 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: 20240137744Abstract: It is intended to provide a communication terminal capable of preventing an operator of the communication terminal from recognizing processing running in the communication terminal. A communication terminal (10) according to the present disclosure includes a communication unit (11) that transmits an emergency message and a control unit (12) that disables a user's operation of the communication terminal or a function executed by a user's operation of the communication terminal after the emergency message is transmitted, and the communication unit (11) starts data communication with a monitoring terminal and transmits data to the monitoring terminal while the function is disabled.Type: ApplicationFiled: March 30, 2021Publication date: April 25, 2024Applicant: NEC CorporationInventors: Motoharu Ohtake, Kosel Kobayashi, Hiroaki Aminaka, Shinji Miyazaki, Tomoaki Nakanishi
-
Patent number: 11947184Abstract: A lens barrel includes: a variable-power optical system including a focus lens group; a focus actuator configured to move the focus lens group supported by a support forward or backward in a direction of the optical axis to change a shooting distance; and a moving unit configured to, in response to receiving a driving force for changing a zoom magnification, move a position of the focus lens group in the direction of the optical axis to a position corresponding to the changed zoom magnification. The moving unit is configured to move the focus lens group in the direction of the optical axis by the driving force such that a change in a shooting distance due to a change in the zoom magnification is within a predetermined tolerance when the focus lens group is at a position corresponding to the minimum shooting distance, at every zoom magnification.Type: GrantFiled: March 12, 2020Date of Patent: April 2, 2024Assignee: RICOH COMPANY, LTD.Inventors: Takahiro Kobayashi, Tomoaki Kobayashi, Takahiro Nakayama
-
Publication number: 20240079459Abstract: According to one embodiment, a semiconductor device includes a first electrode, a second electrode, a third electrode; a fourth electrode, a semiconductor member, a first conductive member, a second conductive member, and an insulating member. The semiconductor member includes first, second and third semiconductor regions. The first semiconductor region includes a first outer edge region, a first partial region, a second partial region, a third partial region, and a fourth partial region. The first, third and fourth partial regions are of a first conductivity type. The second semiconductor region is of a second conductivity type. The third semiconductor region is of the first conductivity type. The second conductive member includes a first conductive portion. The insulating member includes a first insulating region and a second insulating region. An electrical resistivity of the second partial region is higher than an electrical resistivity of the first partial region.Type: ApplicationFiled: February 14, 2023Publication date: March 7, 2024Inventors: Yusuke KOBAYASHI, Tomoaki INOKUCHI, Hiro GANGI, Shotaro BABA
-
Publication number: 20240019605Abstract: This optical laminate contains a transparent substrate, an optical functional layer and an antifouling layer laminated in that order, wherein when a light with a wavelength of 380 nm to 780 nm from a standard light source D65 is incident upon the optical laminate at an incident angle within a range from 5° to 50° relative to the surface, the a* value and the b* value in the CIE-Lab color system of the reflected light are within the same quadrant of the a*b* plane.Type: ApplicationFiled: November 25, 2021Publication date: January 18, 2024Applicant: DEXERIALS CORPORATIONInventor: Tomoaki KOBAYASHI
-
Publication number: 20230321933Abstract: This production method for an optical laminate is a production method for an optical laminate having a plastic film, an adhesion layer, an optical function layer and an antifouling layer laminated in order and includes an adhesion layer formation step of forming an adhesion layer, an optical function layer formation step of forming an optical function layer, a surface treatment step of treating a surface of the optical function layer so that a change rate of surface roughness represented by the prescribed formula (1) is 5% to 35% or a change rate of an average length of elements represented by the prescribed formula (2) is 7% to 70%, and an antifouling layer formation step of forming an antifouling layer on the optical function layer having a treated surface.Type: ApplicationFiled: September 8, 2021Publication date: October 12, 2023Inventors: Tomoaki Kobayashi, Zhen Huang, Katsutoshi Suzuki, Tsuguto Suzuki, Yuko Kibushi
-
Publication number: 20230324584Abstract: This optical laminate 101 is an optical laminate including a plastic film 11, an adhesion layer 13, an optical function layer 14 and an antifouling layer 15 laminated in order, in which the antifouling layer 15 is made of a vapor-deposited film obtained by 5 vapor deposition of an antifouling material, a film thickness of the antifouling layer 15 is 2.5 nm or more, a water vapor transmission rate is 1.5 g/(m2·1 day) or less, and a hue change ?E value of reflected color in consideration of specular light (SCI) after contacting a sodium hydroxide aqueous solution having a liquid temperature of 55° C. and a concentration of 0.1 mol/L for four hours is less than 10.Type: ApplicationFiled: September 8, 2021Publication date: October 12, 2023Inventors: Tomoaki Kobayashi, Zhen Huang, Katsutoshi Suzuki, Tsuguto Suzuki, Yuko Kibushi
-
Publication number: 20230311448Abstract: This method of manufacturing an optical laminate comprising a transparent substrate, an adhesion layer, an optical functional layer, and an antifouling layer laminated in this order, includes an adhesion layer forming step of forming the adhesion layer, an optical functional layer forming step of forming the optical functional layer, a surface treatment step of treating the surface of the optical functional layer so that the rate of change in surface roughness represented by formula (1) is 1˜25%, and an antifouling layer forming step of forming the antifouling layer on the surface-treated optical functional layer; Rate of change of surface roughness (%)=((Ra2/Ra1)?1)×100 (%) Formula (1) (Formula (1), where Ra1 represents the surface roughness (Ra) of the optical functional layer before the surface thereof is treated, and Ra2 represents the surface roughness (Ra) of the optical functional layer after the surface thereof is treated.).Type: ApplicationFiled: March 3, 2021Publication date: October 5, 2023Inventors: Tsuguto Suzuki, Zhen Huang, Katsutoshi Suzuki, Takahisa Watanabe, Yuko Kibushi, Tomoaki Kobayashi
-
Publication number: 20230191732Abstract: This method for producing an optical laminate is a method for producing an optical laminate including a plastic film, an adhesion layer, an optical function layer, and an antifouling layer which are laminated in this order. The method includes an adhesion layer forming step of forming an adhesion layer, an optical function layer forming step of forming an optical function layer, a surface treatment step of performing glow discharge treatment of a surface of the optical function layer, and an antifouling layer forming step of forming an antifouling layer on the optical function layer which has been subjected to surface treatment. An integrated output of the glow discharge treatment is 130 W·min/m2 to 2000 W·min/m2.Type: ApplicationFiled: July 16, 2021Publication date: June 22, 2023Inventors: Tsuguto Suzuki, Zhen Huang, Katsutoshi Suzuki, Takahisa Watanabe, Yuko Kibushi, Tomoaki Kobayashi
-
Publication number: 20230160354Abstract: A control method is provided for controlling an internal combustion engine for a vehicle configured to engage a lockup clutch during a fuel cut, and to decrease a lockup hydraulic pressure at a fuel cut recovery to bring the lockup clutch to a slip engagement. The control method includes estimating a torque of the internal combustion engine generated by the fuel cut recovery when a fuel cut recovery condition is satisfied. The control method further includes decreasing a decrease amount of the lockup hydraulic pressure as the torque is greater.Type: ApplicationFiled: April 8, 2020Publication date: May 25, 2023Applicant: NISSAN MOTOR CO., LTD.Inventors: Yuzuru TOHTA, Kohei KAMIYA, Noriaki EJIRI, Tomoaki KOBAYASHI
-
Publication number: 20230127573Abstract: This optical laminate includes a transparent substrate, an optical functional layer, and an antifouling layer laminated in this order, wherein the optical functional layer is a laminate in which a low refractive index layer and a high refractive index layer are alternately laminated, the antifouling layer is formed of a vapor-deposited film obtained by vapor deposition of an antifouling material, and the residual amount of fluorine atoms in the antifouling layer detected by XRF after 10 minutes of cleaning by irradiation with 40 KHz and 240 W ultrasonic waves in a fluorine-based solvent is 70% or more.Type: ApplicationFiled: March 3, 2021Publication date: April 27, 2023Inventors: Tomoaki Kobayashi, Zhen Huang, Katsutoshi Suzuki, Tsuguto Suzuki, Yuko Kibushi
-
Publication number: 20230129985Abstract: This optical laminate is an optical laminate including a plastic film, an adhesion layer, an optical function layer, and an antifouling layer which are laminated in this order. The antifouling layer includes a vapor-deposited film in which an antifouling material is vapor-deposited. A water vapor transmittance is 1.5 g/(m2·1 day) or lower. A hue change ?E value in (SCI) reflected color in consideration of specular reflection light after being brought into contact with a sodium hydroxide aqueous solution having a concentration of 0.1 mol/L at a liquid temperature of 55° C. for four hours is smaller than 10.Type: ApplicationFiled: July 16, 2021Publication date: April 27, 2023Inventors: Tomoaki Kobayashi, Zhen Huang, Katsutoshi Suzuki, Tsuguto Suzuki, Yuko Kibushi
-
Publication number: 20230032697Abstract: A control method for an internal combustion engine configured to implement fuel cut in response to becoming zero of an accelerator opening degree during travel of a vehicle, and generate an antiphase torque after the fuel cut by supplying fuel to a cylinder, in order to cancel out vibration of the vehicle caused due to the fuel cut includes setting a timing of generating the antiphase torque to be later than that for normal operation, in response to implementation of the fuel cut under high torque idle operation in which a torque of the internal combustion engine immediately before the fuel cut where the accelerator opening degree is zero is higher than that in the normal operation.Type: ApplicationFiled: April 8, 2020Publication date: February 2, 2023Applicant: NISSAN MOTOR CO., LTD.Inventors: Yuzuru TOHTA, Kohei KAMIYA, Noriaki EJIRI, Tomoaki KOBAYASHI
-
Publication number: 20220357485Abstract: An antireflection film has high infrared transmittance and excellent flexibility. An antireflection layer includes a base material, a hard coat layer, an adhesion layer, and an antireflection layer in this order, wherein the antireflection layer includes, from the adhesion layer side, a first high refractive index layer having an optical thickness of 41 to 52 nm, a first low refractive index layer having an optical thickness of 41 to 53 nm, a second high refractive index layer having an optical thickness of 302 to 313 nm, and a second low refractive index layer having an optical thickness of 135 to 196 nm.Type: ApplicationFiled: May 17, 2021Publication date: November 10, 2022Applicant: DEXERIALS CORPORATIONInventor: Tomoaki KOBAYASHI
-
Publication number: 20220146784Abstract: A lens barrel includes: a variable-power optical system including a focus lens group; a focus actuator configured to move the focus lens group supported by a support forward or backward in a direction of the optical axis to change a shooting distance; and a moving unit configured to, in response to receiving a driving force for changing a zoom magnification, move a position of the focus lens group in the direction of the optical axis to a position corresponding to the changed zoom magnification. The moving unit is configured to move the focus lens group in the direction of the optical axis by the driving force such that a change in a shooting distance due to a change in the zoom magnification is within a predetermined tolerance when the focus lens group is at a position corresponding to the minimum shooting distance, at every zoom magnification.Type: ApplicationFiled: March 12, 2020Publication date: May 12, 2022Inventors: Takahiro KOBAYASHI, Tomoaki KOBAYASHI, Takahiro NAKAYAMA
-
Patent number: 10851040Abstract: A method for producing at least one oxidation product selected from the group consisting of acrolein and acrylic acid is provided. This method can alleviate concerns about deterioration of a gas-phase oxidation catalyst and reaction runaway in a restart period after a shutdown, and can allow the reaction to proceed in a stable state. Using a fixed-bed reactor filled with a gas-phase oxidation catalyst, at least one source gas selected from the group consisting of propylene and acrolein is subjected to a gas-phase contact oxidation reaction while a heating medium is caused to contact with or circulate through the fixed-bed reactor and thereby to heat the fixed-bed reactor. The temperature of the heating medium when the load is maximum in the restart period after the shutdown is controlled to be lower than the temperature of the heating medium when the load is maximum in an initial start-up period.Type: GrantFiled: March 29, 2017Date of Patent: December 1, 2020Assignee: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tomoyuki Kawamura, Tomoaki Kobayashi, Tatsuhiko Kurakami, Hideo Yoshida
-
Publication number: 20200048175Abstract: A method for producing at least one oxidation product selected from the group consisting of acrolein and acrylic acid is provided. This method can alleviate concerns about deterioration of a gas-phase oxidation catalyst and reaction runaway in a restart period after a shutdown, and can allow the reaction to proceed in a stable state. Using a fixed-bed reactor filled with a gas-phase oxidation catalyst, at least one source gas selected from the group consisting of propylene and acrolein is subjected to a gas-phase contact oxidation reaction while a heating medium is caused to contact with or circulate through the fixed-bed reactor and thereby to heat the fixed-bed reactor. The temperature of the heating medium when the load is maximum in the restart period after the shutdown is controlled to be lower than the temperature of the heating medium when the load is maximum in an initial start-up period.Type: ApplicationFiled: March 29, 2017Publication date: February 13, 2020Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tomoyuki KAWAMURA, Tomoaki KOBAYASHI, Tatsuhiko KURAKAMI, Hideo YOSHIDA
-
Patent number: 8877964Abstract: The present invention relates to a method for producing acrylic acid through vapor-phase contact oxidation of acrolein, wherein a reactor tube is divided into at least two catalyst layers, and catalysts having a higher activity are charged in the reactor tube sequentially toward an outlet port side from a material source gas inlet port side for a reaction therein to give acrylic acid, and wherein a catalyst activity-controlling method is a method comprising: a step of mixing a molybdenum-containing compound, a vanadium-containing compound, a copper-containing compound and an antimony-containing compound with water, then drying and calcining a resulting mixture, in which a catalytically-active element composition is kept constant but material source compounds are made to vary in type to give composite metal oxides having a different activity.Type: GrantFiled: October 27, 2011Date of Patent: November 4, 2014Assignee: NipponKayaku KabushikiKaishaInventors: Yuta Nakazawa, Susumu Matsumoto, Tomoaki Kobayashi, Tatsuhiko Kurakami
-
Patent number: 8586785Abstract: An object of the present invention is to provide a process for stably producing a catalyst for methacrylic acid production exhibiting high activity and high performance. The process for producing a catalyst for methacrylic acid production of the invention is characterized in that the water content of the catalyst ingredient powder for use in molding, temperature and humidity of a molding step, humidity and temperature of a baking step are individually controlled in the case where molding is performed by a coating method using an Mo—V—P—Cu-based hetero polyacid as an active ingredient and water or an alcohol and/or an aqueous solution of an alcohol as a binder.Type: GrantFiled: November 17, 2011Date of Patent: November 19, 2013Assignee: NipponKayaku KabushikiKaishaInventors: Atsushi Sudo, Kazuo Shiraishi, Hideki Sugi, Hiroyoshi Nowatari, Fumio Sakai, Tomoaki Kobayashi, Tatsuhiko Kurakami
-
Publication number: 20130217915Abstract: The present invention relates to a method for producing acrylic acid through vapor-phase contact oxidation of acrolein, wherein a reactor tube is divided into at least two catalyst layers, and catalysts having a higher activity are charged in the reactor tube sequentially toward an outlet port side from a material source gas inlet port side for a reaction therein to give acrylic acid, and wherein a catalyst activity-controlling method is a method comprising: a step of mixing a molybdenum-containing compound, a vanadium-containing compound, a copper-containing compound and an antimony-containing compound with water, then drying and calcining a resulting mixture, in which a catalytically-active element composition is kept constant but material source compounds are made to vary in type to give composite metal oxides having a different activity.Type: ApplicationFiled: October 27, 2011Publication date: August 22, 2013Applicant: NIPPONKAYAKU KABUSHIKIKAISHAInventors: Yuta Nakazawa, Susumu Matsumoto, Tomoaki Kobayashi, Tatsuhiko Kurakami
-
Publication number: 20120329638Abstract: The present invention relates to a method for manufacturing a regenerated catalyst from a recovered catalyst from manufacturing process or a used catalyst of a heteropoly acid-based catalyst containing molybdenum, phosphorus, vanadium or copper as an essential component by the below-described Process a to Process f: Process a: a solution A is prepared by mixing a substance M with an aqueous solvent and removing a component insoluble in the solvent; Process b: the molar quantity of at least one component of molybdenum, phosphorus, vanadium or copper contained in the solution A is measured; Process c: an aqueous hydrogen peroxide solution is added to the solution A to obtain a solution B; Process d: the difference between the content obtained in Process b and the theoretical value of a required element is determined and the shortage amount of the catalyst component is added to the solution B to prepare a solution C; Process e: the solution C is dried to prepare catalyst granules D; and Process f: the catalystType: ApplicationFiled: March 28, 2011Publication date: December 27, 2012Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tatsuhiko Kurakami, Takayuki Iijima, Tomoaki Kobayashi, Toshitake Kojima