Patents by Inventor Kenji Tada
Kenji Tada 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).
-
Patent number: 10406256Abstract: Provided is a water absorbent resin that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having a higher liquid permeability and a higher water absorbing speed. Further provided is a water absorbent resin powder that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having increased in absorbency of a liquid and in heat retaining property. A gel grinding device to be used to produce a water absorbent resin, includes: a screw; a feed opening; an extrusion opening; a porous plate; and a barrel, the barrel including a return preventing member provided on an inner surface thereof, and the return preventing member satisfying at least one of specific parameters.Type: GrantFiled: August 28, 2014Date of Patent: September 10, 2019Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Kazushi Torii, Kohei Omori, Nobuya Tanaka, Shigeru Sakamoto, Kenji Tada, Hironori Sato
-
Publication number: 20190120091Abstract: A driven rotational body rotates relative to a driving rotational body to change a rotational phase therebetween and brings its driven-side stopper wall into contact with a driving-side stopper wall of the driving rotational body in the relative rotational direction. The planetary gear performs a planetary motion while being meshed with the driving rotational body and the driven rotational body to change the rotational phase. The driving rotational body includes a gear member, a cover member, and a fastening member. The gear member has the driving-side stopper wall and is meshed with the planetary gear. The cover member covers an accommodation space, in which the driven rotational body and the planetary gear are accommodated, together with the gear member. The fastening member axially fastens the gear member with the cover member.Type: ApplicationFiled: February 28, 2017Publication date: April 25, 2019Inventor: Kenji TADA
-
Patent number: 10133939Abstract: Even if a problem has occurred with respect to a multimedia micro-computer that generates a composite image including guiding lines, while a gearshift of a vehicle is in reverse, a reset process is not performed for the multimedia micro-computer. The reset process is performed after the gearshift is determined to have moved from reverse.Type: GrantFiled: October 13, 2016Date of Patent: November 20, 2018Assignee: Fujitsu Ten LimitedInventors: Kenji Tada, Yuji Maruyama, Nobuyuki Batou
-
Publication number: 20180185820Abstract: The present invention provides polyacrylic acid (salt)-based water-absorbing resin powder having an excellent fluid retention capacity under pressure, an excellent water absorption speed, and an excellent liquid permeability and a method for producing the polyacrylic acid (salt)-based water-absorbing resin powder. The earlier-described objects are attained by: a method for producing water-absorbing resin powder which includes adding an inorganic compound to a crosslinked hydrogel polymer obtained in a polymerization step of polymerizing a polyacrylic acid (salt) and performing crushing in specific gel-crushing conditions; and the resultant water-absorbing resin powder.Type: ApplicationFiled: March 29, 2016Publication date: July 5, 2018Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Kenji TADA, Kazushi TORII
-
Patent number: 9796820Abstract: The present invention is a method for producing a water absorbent resin which method is a method for producing surface cross-linked water absorbent resin particles, the method including the successive steps of: (a) adding a surface cross-linking agent and water to a particulate water absorbent resin in a mixer; and (b) reacting the resulting water absorbent resin mixture taken out from the mixer with the surface cross-linking agent in a reactor by heating or active energy ray irradiation, water vapor being used as part or all of the water added in the mixer. This makes it possible to provide a method for producing a water absorbent resin in which method a surface cross-linked water absorbent resin that has excellent properties can be obtained efficiently at low cost with high productivity.Type: GrantFiled: December 20, 2013Date of Patent: October 24, 2017Assignee: Nippon Shokubai Co., Ltd.Inventors: Kenji Kadonaga, Kenji Tada, Masazumi Sasabe, Seiji Kato
-
Publication number: 20170124403Abstract: Even if a problem has occurred with respect to a multimedia micro-computer that generates a composite image including guiding lines, while a gearshift of a vehicle is in reverse, a reset process is not performed for the multimedia micro-computer. The reset process is performed after the gearshift is determined to have moved from reverse.Type: ApplicationFiled: October 13, 2016Publication date: May 4, 2017Applicant: FUJITSU TEN LIMITEDInventors: Kenji TADA, Yuji MARUYAMA, Nobuyuki BATOU
-
Patent number: 9533433Abstract: Provided is a water absorbent resin that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having a higher liquid permeability and a higher water absorbing speed. Further provided is a water absorbent resin powder that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having a smaller amount of return of a liquid and a higher heat retaining property. A gel grinding device to be used to produce a water absorbent resin, includes: a screw; a feed opening; an extrusion opening; a porous plate; and a barrel, the screw including: a rotating shaft; and a flight, and the screw satisfying at least one of specific parameters.Type: GrantFiled: August 28, 2014Date of Patent: January 3, 2017Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Kazushi Torii, Kohei Omori, Nobuya Tanaka, Shigeru Sakamoto, Kenji Tada, Hironori Sato
-
Publication number: 20160236803Abstract: An object of the invention is to provide a technique in which a decrease in physical properties is suppressed or consumer complaints are diminished. A method for filling a particulate water absorbing agent includes a filling step of filling a particulate water absorbing agent into a filling container and a vibrating step of vibrating the filling container at the outside of the filling container, the vibrating step being conducted at least one time between the start and the end of the filling step, in which a vibration condition in the vibrating step satisfies the following conditions (a) and (b): (a) vibration by a vibrating body in contact with the filling container has a vertical directional component and a vibrational angle is within 90°±30°; and (b) total amplitude at no load and a vibration frequency at no load of the vibrating body are set so as to satisfy Equation 1-1 and Equation 2 or Equation 1-2 and Equation 2.Type: ApplicationFiled: September 30, 2014Publication date: August 18, 2016Inventors: Kazushi TORII, Shigeru SAKAMOTO, Kenji TADA, Kazuki KIMURA, Yusuke WATANABE
-
Publication number: 20160207226Abstract: Provided is a water absorbent resin that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having a higher liquid permeability and a higher water absorbing speed. Further provided is a water absorbent resin powder that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having a smaller amount of return of a liquid and a higher heat retaining property. A gel grinding device to be used to produce a water absorbent resin, includes: a screw; a feed opening; an extrusion opening; a porous plate; and a barrel, the screw including: a rotating shaft; and a flight, and the screw satisfying at least one of specific parameters.Type: ApplicationFiled: August 28, 2014Publication date: July 21, 2016Inventors: Kazushi TORII, Kohei OMORI, Nobuya TANAKA, Shigeru SAKAMOTO, Kenji TADA, Hironori SATO
-
Publication number: 20160199529Abstract: Provided is a water absorbent resin that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having a higher liquid permeability and a higher water absorbing speed. Further provided is a water absorbent resin powder that is useful to sanitary materials such as a disposable diaper, a sanitary napkin, and a blood absorbent for medical use each having increased in absorbency of a liquid and in heat retaining property. A gel grinding device to be used to produce a water absorbent resin, includes: a screw; a feed opening; an extrusion opening; a porous plate; and a barrel, the barrel including a return preventing member provided on an inner surface thereof, and the return preventing member satisfying at least one of specific parameters.Type: ApplicationFiled: August 28, 2014Publication date: July 14, 2016Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Kazushi TORII, Kohei OMORI, Nobuya TANAKA, Shigeru SAKAMOTO, Kenji TADA, Hironori SATO
-
Patent number: 9362770Abstract: A device control apparatus according to an embodiment includes a monitoring unit, a first processing unit, and a second processing unit. The monitoring unit monitors a state of voltage supply from a battery. When the start of the voltage supply is detected, the first processing unit starts the voltage supply to some devices, operates in a first operation mode, and executes a resume process of the devices. When the resume process is completed, the second processing unit starts the voltage supply to devices other than some devices, initializes states of the devices, and operates in a second operation mode in which consumption power is larger than consumption power of the first operation mode.Type: GrantFiled: January 27, 2014Date of Patent: June 7, 2016Assignee: FUJITSU TEN LIMITEDInventors: Kenji Tada, Kenji Furukawa, Tohru Mikamo, Toshihito Sawai, Hideshi Nishizawa, Takashi Mizushima, Satoru Nakae, Kiyoshi Koyama, Ryoh Izumoto, Mitsuru Hanada
-
Patent number: 8863709Abstract: A valve timing adjuster is mounted to a driving force transmission system, wherein the driving force transmission system transmits a driving force through a timing belt from a drive shaft to a driven shaft. The timing belt is rotatable synchronously with rotation of the drive shaft. The valve timing adjuster includes a pulley part, a housing, and a vane rotor. The pulley part is rotatable synchronously with the drive shaft through engagement with the timing belt. The housing is formed integrally with the pulley part. The vane rotor is received within the housing. The vane rotor is rotatable synchronously with the driven shaft. The vane rotor has a plurality of vane parts that is rotatable relative to the housing within a predetermined angular range.Type: GrantFiled: January 20, 2011Date of Patent: October 21, 2014Assignee: Denso CorporationInventor: Kenji Tada
-
Patent number: 8851032Abstract: A variable-camshaft-timing mechanism is provided with a conically spiral spring valve as a check valve. When the conically spiral spring valve is opened, a plurality of flow passage clearances are formed between adjacent windings of the check valve, whereby a pressure loss of the working fluid can be reduced when passing through the check valve. When a reverse flow is generated, the check valve receives the reverse flow in its axial direction. Thus, the reverse flow of the working fluid can be utilized as a thrust force in a close direction of the check valve. A valve closing responsiveness of the check valve can be improved.Type: GrantFiled: September 6, 2012Date of Patent: October 7, 2014Assignee: Denso CorporationInventor: Kenji Tada
-
Publication number: 20140210421Abstract: A device control apparatus according to an embodiment includes a monitoring unit, a first processing unit, and a second processing unit. The monitoring unit monitors a state of voltage supply from a battery. When the start of the voltage supply is detected, the first processing unit starts the voltage supply to some devices, operates in a first operation mode, and executes a resume process of the devices. When the resume process is completed, the second processing unit starts the voltage supply to devices other than some devices, initializes states of the devices, and operates in a second operation mode in which consumption power is larger than consumption power of the first operation mode.Type: ApplicationFiled: January 27, 2014Publication date: July 31, 2014Applicant: FUJITSU TEN LIMITEDInventors: Kenji TADA, Kenji FURUKAWA, Tohru MIKAMO, Toshihito SAWAI, Hideshi NISHIZAWA, Takashi MIZUSHIMA, Satoru NAKAE, Kiyoshi KOYAMA, Ryoh IZUMOTO, Mitsuru HANADA
-
Publication number: 20140107293Abstract: The present invention is a method for producing a water absorbent resin which method is a method for producing surface cross-linked water absorbent resin particles, the method including the successive steps of: (a) adding a surface cross-linking agent and water to a particulate water absorbent resin in a mixer; and (b) reacting the resulting water absorbent resin mixture taken out from the mixer with the surface cross-linking agent in a reactor by heating or active energy ray irradiation, water vapor being used as part or all of the water added in the mixer. This makes it possible to provide a method for producing a water absorbent resin in which method a surface cross-linked water absorbent resin that has excellent properties can be obtained efficiently at low cost with high productivity.Type: ApplicationFiled: December 20, 2013Publication date: April 17, 2014Applicant: Nippon Shokubai Co., Ltd.Inventors: Kenji KADONAGA, Kenji TADA, Masazumi SASABE, Seiji KATO
-
Patent number: 8648150Abstract: The present invention is a method for producing a water absorbent resin which method is a method for producing surface cross-linked water absorbent resin particles, the method including the successive steps of: (a) adding a surface cross-linking agent and water to a particulate water absorbent resin in a mixer; and (b) reacting the resulting water absorbent resin mixture taken out from the mixer with the surface cross-linking agent in a reactor by heating or active energy ray irradiation, water vapor being used as part or all of the water added in the mixer. This makes it possible to provide a method for producing a water absorbent resin in which method a surface cross-linked water absorbent resin that has excellent properties can be obtained efficiently at low cost with high productivity.Type: GrantFiled: March 4, 2010Date of Patent: February 11, 2014Assignee: Nippon Shokubai Co., Ltd.Inventors: Kenji Kadonaga, Kenji Tada, Masazumi Sasabe, Seiji Kato
-
Patent number: 8598254Abstract: Aqueous liquid and moisture vapor are added to water absorbent resin powder so that particles of the water absorbent resin powder are bound. Supplying the aqueous liquid and moisture vapor to the water absorbent resin powder reduces the amount of particles that remain unbound (ungranulated) and increases the concentration of the water absorbent resin bound particles to provide improved drying efficiency and to obtain particulate water absorbent resin having excellent properties even when the bound particles are highly concentrated. The present invention provides (i) a method for binding water absorbent resin and (ii) a method for producing particulate water absorbent resin including the step of binding particles of water absorbent resin powder.Type: GrantFiled: September 4, 2008Date of Patent: December 3, 2013Assignee: Nippon Shokubai Co., Ltd.Inventors: Kenji Tada, Kenji Kadonaga, Masazumi Sasabe
-
Publication number: 20130068184Abstract: A variable-camshaft-timing mechanism is provided with a conically spiral spring valve as a check valve. When the conically spiral spring valve is opened, a plurality of flow passage clearances are formed between adjacent windings of the check valve, whereby a pressure loss of the working fluid can be reduced when passing through the check valve. When a reverse flow is generated, the check valve receives the reverse flow in its axial direction. Thus, the reverse flow of the working fluid can be utilized as a thrust force in a close direction of the check valve. A valve closing responsiveness of the check valve can be improved.Type: ApplicationFiled: September 6, 2012Publication date: March 21, 2013Applicant: DENSO CORPORATIONInventor: Kenji TADA
-
Patent number: 8327813Abstract: An assist spring is fixed at its one end to a vane rotor and at its other end to a spring hook provided at an outside of a housing 18. A signal plate is fixed to the vane rotor on a side of the spring hook. A cam angle sensor is provided at an outer peripheral side of the signal plate for detecting a rotational angle of the signal plate. The assist spring and the spring hook are arranged in an area, which is inside of an outer periphery of the signal plate in a radial direction, so that the cam angle sensor may not misidentify the assist spring and the spring hook and thereby exactly detects the rotational angle of the signal plate.Type: GrantFiled: April 8, 2010Date of Patent: December 11, 2012Assignee: Denso CorporationInventors: Kenji Tada, Masayasu Ushida
-
Publication number: 20110319518Abstract: The present invention is a method for producing a water absorbent resin which method is a method for producing surface cross-linked water absorbent resin particles, the method including the successive steps of: (a) adding a surface cross-linking agent and water to a particulate water absorbent resin in a mixer; and (b) reacting the resulting water absorbent resin mixture taken out from the mixer with the surface cross-linking agent in a reactor by heating or active energy ray irradiation, water vapor being used as part or all of the water added in the mixer. This makes it possible to provide a method for producing a water absorbent resin in which method a surface cross-linked water absorbent resin that has excellent properties can be obtained efficiently at low cost with high productivity.Type: ApplicationFiled: March 4, 2010Publication date: December 29, 2011Applicant: NIPPON SHOKUBAI CO., LTD.Inventors: Kenji Kadonaga, Kenji Tada, Masazumi Sasabe, Seiji Kato