Patents by Inventor Norikazu Hattori
Norikazu Hattori 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: 11881789Abstract: The inverter includes: a main body case accommodating main circuit terminal block and a control terminal block, high-voltage wire and low-voltage wire being respectively connected to the main circuit terminal block and the control terminal block; a wire cover detachably attached to the main body case to cover the main circuit terminal block; and a front cover detachably attached to the wire cover to cover the control terminal block, the front cover being fixed to the main body case with a fastening member requiring a tool for removal. The front cover includes a stopper, and, in a state where the front cover is attached to the wire cover, the stopper is located on a path through which the wire cover moves when removing the wire cover from the main body case.Type: GrantFiled: November 28, 2019Date of Patent: January 23, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahiro Kurahori, Tatsuki Matsunaga, Norikazu Hattori, Shohei Suzuki, Yasuo Fujii
-
Publication number: 20220311348Abstract: The inverter includes: a main body case accommodating main circuit terminal block and a control terminal block, high-voltage wire and low-voltage wire being respectively connected to the main circuit terminal block and the control terminal block; a wire cover detachably attached to the main body case to cover the main circuit terminal block; and a front cover detachably attached to the wire cover to cover the control terminal block, the front cover being fixed to the main body case with a fastening member requiring a tool for removal. The front cover includes a stopper, and, in a state where the front cover is attached to the wire cover, the stopper is located on a path through which the wire cover moves when removing the wire cover from the main body case.Type: ApplicationFiled: November 28, 2019Publication date: September 29, 2022Applicant: Mitsubishi Electric CorporationInventors: Takahiro KURAHORI, Tatsuki MATSUNAGA, Norikazu HATTORI, Shohei SUZUKI, Yasuo FUJII
-
Patent number: 11362614Abstract: A power conversion apparatus includes a main circuit unit, a control unit, a current sensor, and a half-wave rectifier unit. The control unit includes current frequency calculation units and monitoring units. The current frequency calculation units calculate current frequencies based on at least either the rising timing or falling timing of current detection signals half-wave rectified by the half-wave rectifier unit. The monitoring units monitor the speed of a motor based on the current frequencies calculated by the current frequency calculation units.Type: GrantFiled: November 21, 2019Date of Patent: June 14, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Norikazu Hattori, Norihiro Suzuki, Tetsuo Tanaka, Naoto Norina, Takahiro Harada
-
Publication number: 20220045641Abstract: A power conversion apparatus includes a main circuit unit, a control unit, a current sensor, and a half-wave rectifier unit. The control unit includes current frequency calculation units and monitoring units. The current frequency calculation units calculate current frequencies based on at least either the rising timing or falling timing of current detection signals half-wave rectified by the half-wave rectifier unit. The monitoring units monitor the speed of a motor based on the current frequencies calculated by the current frequency calculation units.Type: ApplicationFiled: November 21, 2019Publication date: February 10, 2022Applicant: Mitsubishi Electric CorporationInventors: Norikazu HATTORI, Norihiro SUZUKI, Tetsuo TANAKA, Naoto NORINA, Takahiro HARADA
-
Patent number: 5993018Abstract: In a device for detecting mirror position, there is provided a resistor substrate being located coaxially with a nut adjuster for adjusting an angle of incline of a mirror, and a contact member so as to nip the resistor substrate. The contact member slides in line corresponding to the movement of the nut adjuster while the resistor substrate is fixed to a housing. Thus, as the nut adjuster slides, the contact member slides against the resistor substrate, which results the change of a contact position of the contact member and a long resistance R1. Consequently, since a voltage level generated at the contact member changes, the angle of incline of the mirror can be determined by detecting this voltage level. Inasmuch as the contact member and the resistor substrate are housed within a sliding block, there is no need for much space to locate the various parts in, and thus the whole device can be configured in a compact manner.Type: GrantFiled: March 23, 1998Date of Patent: November 30, 1999Assignee: Murakami CorporationInventors: Norikazu Hattori, Naoto Iwanabe, Michiaki Hattori, Toshihiro Mochizuki, Toru Okamoto
-
Patent number: 5783271Abstract: A process for the production of biodegradable aliphatic polyester particles by (co)polymerizing 2-oxetanone or a mixture containing at least 80% by weight of 2-oxetanone and up to 20% by weight of a cyclic ester or cyclic ether other than 2-oxetanone in the presence of a polymerization initiator supported on a carrier in which an ion polymerization initiator is supported on poly(2-oxetanone) in a liquid medium having a solubility parameter of about 15 to about 18 MPa.sup.1/2 and being capable of dissolving 2-oxetanone, and in a polymerizing apparatus having an internal surface formed of a material which is free of polarity or whose polarity is very small, to form a particulate aliphatic polyester; and a biodegradable aliphatic polyester melt-extrusion film, which comprises the biodegradable aliphatic polyester having a weight average molecular weight of 20,000 to 2,000,000, and having a water vapor transmission rate of 300 to 700 g/m.sup.2 .multidot.24 hours.multidot.25 .mu.Type: GrantFiled: April 24, 1996Date of Patent: July 21, 1998Assignee: Tokuyama CorporationInventors: Haruo Nishida, Mitsuhiro Yamashita, Norikazu Hattori, Yoshiki Ochi, Tetsuo Kuwaki
-
Patent number: 5731402Abstract: A process for the production of biodegradable aliphatic polyester particles by (co)polymerizing 2-oxetanone or a mixture containing at least 80% by weight of 2-oxetanone and up to 20% by weight of a cyclic ester or cyclic ether other than 2-oxetanone in the presence of a polymerization initiator supported on a carrier in which an ion polymerization initiator is supported on poly(2-oxetanone) in a liquid medium having a solubility parameter of about 15 to about 18 MPa.sup.1/2 and being capable of dissolving 2-oxetanone, and in a polymerizing apparatus having an internal surface formed of a material which is free of polarity or whose polarity is very small, to form a particulate aliphatic polyester; and a biodegradable aliphatic polyester melt-extrusion film, which comprises the biodegradable aliphatic polyester having a weight average molecular weight of 20,000 to 2,000,000, and having a water vapor transmission rate of 300 to 700 g/m.sup.2.24 hours.25 .mu.m and heat-fusing strength of 500 to 5,000 gf/15 mm.Type: GrantFiled: April 24, 1996Date of Patent: March 24, 1998Assignee: Tokuyama CorporationInventors: Haruo Nishida, Mitsuhiro Yamashita, Norikazu Hattori
-
Patent number: 4877854Abstract: A curable composition comprising an unsaturated polyether having terminal alkenyl groups, a linear or branched siloxane-substituted polyether having terminal polyorganosiloxane residues and at least two Si-H groups in the molecule and a catalyst having platinum as the main component has an excellent deep portion curing property and provides a cured body having a good hydrophilic property and a good dimensional reproducibility. This curable composition is especially valuable as a dental impression material.Type: GrantFiled: December 7, 1987Date of Patent: October 31, 1989Assignee: Tokuyama Soda Kabushiki KaishaInventors: Norikazu Hattori, Sunao Urabe, Koshi Kusumoto