Patents by Inventor Kenichirou Inagaki
Kenichirou Inagaki 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: 10843943Abstract: An electrolytic liquid generation device according to the present disclosure includes an electrolytic part and a housing in which the electrolytic part is disposed. The electrolytic part has a laminate including mutually adjacent electrodes and a conductive film interposed between the electrodes. The electrolytic part electrolyzes a liquid. The housing includes an electrode case having a recess with an opening to enable insertion of the electrolytic part through the opening and to contain the electrolytic part in the recess, and an electrode case lid to cover the opening of the electrode case. The electrolytic part is contained in the recess such that lamination direction Z of the laminate is substantially aligned with a direction in which the opening opens. This configuration provides an electrolytic liquid generation device that can be built with improved facility.Type: GrantFiled: October 4, 2016Date of Patent: November 24, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Kenichirou Inagaki, Atsushi Tsuji, Chihiro Ii, Tetsuya Maekawa, Shunsuke Mori
-
Publication number: 20190055144Abstract: An electrolytic liquid generation device according to the present disclosure includes an electrolytic part and a housing in which the electrolytic part is disposed. The electrolytic part has a laminate including mutually adjacent electrodes and a conductive film interposed between the electrodes. The electrolytic part electrolyzes a liquid. The housing includes an electrode case having a recess with an opening to enable insertion of the electrolytic part through the opening and to contain the electrolytic part in the recess, and an electrode case lid to cover the opening of the electrode case. The electrolytic part is contained in the recess such that lamination direction Z of the laminate is substantially aligned with a direction in which the opening opens. This configuration provides an electrolytic liquid generation device that can be built with improved facility.Type: ApplicationFiled: October 4, 2016Publication date: February 21, 2019Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Kenichirou INAGAKI, Atsushi TSUJI, Chihiro II, Tetsuya MAEKAWA, Shunsuke MORI
-
Patent number: 9701000Abstract: An impact rotation tool including a drive source, an impact force generation unit that generates an impact force for converting power from the drive source to pulsed torque, a shaft that transmits the pulsed torque to a bit used to perform a tightening task, a torque measurement unit that measures torque applied to the shaft as measured torque, a rotation angle measurement unit that measures a rotation angle of the shaft, a tightening torque calculation unit that calculates an angular acceleration from the rotation angle to calculate a tightening torque based on the angular acceleration and the measured torque, and a controller that controls the drive source based on the tightening torque.Type: GrantFiled: July 16, 2014Date of Patent: July 11, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Fumiaki Sekino, Kenichirou Inagaki, Toshiharu Ohashi, Tadashi Arimura, Ryuji Otani, Mitsumasa Mizuno
-
Patent number: 9687972Abstract: An impact rotation tool includes a drive source that generates power. An impact force generation unit generates impact force by changing the power generated by the drive source to pulsed torque. A shaft transmits the pulsed torque to the distal tool with the generated impact force. A torque detector generates a signal corresponding to the torque applied to the shaft. A determination unit determines whether or not a torque value obtained from a signal corresponding to the torque has reached a predetermined torque value. A control unit controls the drive source to a predetermined driving state when the determination unit determines that the torque value has reached the predetermined torque value. The determination unit is arranged on the shaft.Type: GrantFiled: October 8, 2013Date of Patent: June 27, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Fumiaki Sekino, Toshiharu Ohashi, Tadashi Arimura, Kenichirou Inagaki
-
Patent number: 9579776Abstract: An electric power tool includes a voltage step-up condition setting operation unit that serves as a human machine interface and a voltage converter capable of performing a voltage step-up operation to raise a voltage supplied from a power supply and supply a raised voltage to a motor. The voltage converter is further capable of changing a voltage step-up level in the voltage step-up operation in accordance with the operation of the voltage step-up condition setting operation unit. A driving state detection unit generates a driving state signal corresponding to a driving state of the electric power tool. A control unit controls a stop timing of the motor in accordance with the driving state signal.Type: GrantFiled: March 10, 2014Date of Patent: February 28, 2017Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Tadashi Arimura, Toshiharu Ohashi, Hiroyuki Kaizo, Fumiaki Sekino, Kenichirou Inagaki
-
Publication number: 20150021062Abstract: An impact rotation tool including a drive source, an impact force generation unit that generates an impact force for converting power from the drive source to pulsed torque, a shaft that transmits the pulsed torque to a bit used to perform a tightening task, a torque measurement unit that measures torque applied to the shaft as measured torque, a rotation angle measurement unit that measures a rotation angle of the shaft, a tightening torque calculation unit that calculates an angular acceleration from the rotation angle to calculate a tightening torque based on the angular acceleration and the measured torque, and a controller that controls the drive source based on the tightening torque.Type: ApplicationFiled: July 16, 2014Publication date: January 22, 2015Inventors: Fumiaki SEKINO, Kenichirou INAGAKI, Toshiharu OHASHI, Tadashi ARIMURA, Ryuji OTANI, Mitsumasa MIZUNO
-
Publication number: 20140262390Abstract: An electric power tool includes a voltage step-up condition setting operation unit that serves as a human machine interface and a voltage converter capable of performing a voltage step-up operation to raise a voltage supplied from a power supply and supply a raised voltage to a motor. The voltage converter is further capable of changing a voltage step-up level in the voltage step-up operation in accordance with the operation of the voltage step-up condition setting operation unit. A driving state detection unit generates a driving state signal corresponding to a driving state of the electric power tool. A control unit controls a stop timing of the motor in accordance with the driving state signal.Type: ApplicationFiled: March 10, 2014Publication date: September 18, 2014Applicant: Panasonic CorporationInventors: Tadashi ARIMURA, Toshiharu OHASHI, Hiroyuki KAIZO, Fumiaki SEKINO, Kenichirou INAGAKI
-
Patent number: 8708861Abstract: An electric power tool includes a motor; a speed reducer for transferring a rotational power of the motor at a reduced speed; and a reduction ratio changing unit for changing a reduction ratio of the speed reducer. The speed reduction mechanism includes an axially slidable changeover member and a gear member, the changeover member being engaged with or disengaged from the gear member depending on an axial slide position thereof. The reduction ratio changing unit includes a shift actuator for axially sliding the changeover member, a driving state detector for detecting a driving state of the motor, a slide position detector for detecting a slide position of the changeover member and a controller for driving the shift actuator and for temporarily decreasing or increasing a rotational power of the motor depending on detection results of the driving state detector and the slide position detector, respectively.Type: GrantFiled: June 22, 2011Date of Patent: April 29, 2014Assignee: Panasonic CorporationInventors: Kenichirou Inagaki, Yutaka Yamada, Tadashi Arimura, Masatoshi Atsumi, Hiroyuki Kaizo
-
Publication number: 20140102741Abstract: An impact rotation tool includes a drive source that generates power. An impact force generation unit generates impact force by changing the power generated by the drive source to pulsed torque. A shaft transmits the pulsed torque to the distal tool with the generated impact force. A torque detector generates a signal corresponding to the torque applied to the shaft. A determination unit determines whether or not a torque value obtained from a signal corresponding to the torque has reached a predetermined torque value. A control unit controls the drive source to a predetermined driving state when the determination unit determines that the torque value has reached the predetermined torque value. The determination unit is arranged on the shaft.Type: ApplicationFiled: October 8, 2013Publication date: April 17, 2014Applicant: PANASONIC CORPORATIONInventors: Fumiaki SEKINO, Toshiharu OHASHI, Tadashi ARIMURA, Kenichirou INAGAKI
-
Patent number: 8672807Abstract: A speed-changing device includes a motor, a reduction gear train that reduces a rotation speed of the motor in accordance with a speed reduction ratio and transmits the rotation at the reduced speed, and a speed reduction ratio switching unit that switches the speed reduction ratio. The speed reduction ratio switching unit includes an actuator that switches the speed reduction ratio, a controller that controls the actuator, and a drive state detector that detects an index value representing load torque applied to the motor. The controller activates the actuator when the index value exceeds a first threshold value and activates the actuator when the index value fluctuates between the first threshold and a second threshold thereby forming an undulated pattern that satisfies a predetermined condition.Type: GrantFiled: November 15, 2012Date of Patent: March 18, 2014Assignee: Panasonic CorporationInventors: Masatoshi Atsumi, Kenichirou Inagaki, Hiroyuki Kaizo, Tadashi Arimura, Yutaka Yamada
-
Publication number: 20140045653Abstract: A speed-changing device includes a motor, a reduction gear train that reduces a rotation speed of the motor in accordance with a speed reduction ratio and transmits the rotation at the reduced speed, and a speed reduction ratio switching unit that switches the speed reduction ratio. The speed reduction ratio switching unit includes an actuator that switches the speed reduction ratio, a controller that controls the actuator, and a drive state detector that detects an index value representing load torque applied to the motor. The controller activates the actuator when the index value exceeds a first threshold value and activates the actuator when the index value fluctuates between the first threshold and a second threshold thereby forming an undulated pattern that satisfies a predetermined condition.Type: ApplicationFiled: November 15, 2012Publication date: February 13, 2014Applicant: PANASONIC CORPORATIONInventors: Masatoshi ATSUMI, Kenichirou INAGAKI, Hiroyuki KAIZO, Tadashi ARIMURA, Yutaka YAMADA
-
Publication number: 20120010043Abstract: An electric power tool includes a motor; a speed reducer for transferring a rotational power of the motor at a reduced speed; and a reduction ratio changing unit for changing a reduction ratio of the speed reducer. The speed reduction mechanism includes an axially slidable changeover member and a gear member, the changeover member being engaged with or disengaged from the gear member depending on an axial slide position thereof. The reduction ratio changing unit includes a shift actuator for axially sliding the changeover member, a driving state detector for detecting a driving state of the motor, a slide position detector for detecting a slide position of the changeover member and a controller for driving the shift actuator and for temporarily decreasing or increasing a rotational power of the motor depending on detection results of the driving state detector and the slide position detector, respectively.Type: ApplicationFiled: June 22, 2011Publication date: January 12, 2012Applicant: Panasonic Electric Works Power Tools Co., Ltd.Inventors: Kenichirou Inagaki, Yutaka Yamada, Tadashi Arimura, Masatoshi Atsumi, Hiroyuki Kaizo
-
Patent number: D867569Type: GrantFiled: August 24, 2018Date of Patent: November 19, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Tomohiro Yamaguchi, Kenichirou Inagaki