Patents by Inventor Keiichi Tomita
Keiichi Tomita 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).
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Patent number: 11959659Abstract: An outdoor unit for an air-conditioning apparatus, having a compressor, a top cover configured to cover an upper surface of the compressor, and a side cover configured to cover a side of the compressor and a side of the top cover, the side cover including a rectangular cutout portion formed in a part of an upper end of the side cover. The outdoor unit has a non-water-absorbent draining element disposed across from a central portion of the top cover to a bottom portion of the cutout portion, and tilts down from the central portion of the top cover toward the bottom portion of the cutout portion.Type: GrantFiled: March 23, 2018Date of Patent: April 16, 2024Assignee: Mitsubishi Electric CorporationInventors: Kento Oku, Keiichi Tomita, Tetsuya Masuda
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Publication number: 20240118612Abstract: An embodiment of the present invention relates to a photosensitive resin composition, a method for manufacturing a resist pattern film, and a method for manufacturing a plated shaped article; the photosensitive resin composition comprises (A) an alkali-soluble resin, (B1) a polymerizable compound having at least two (meth)acryloyl groups and at least two hydroxy groups in one molecule and having a ring structure, (C) a photoradical polymerization initiator, (D) at least one compound selected from the group consisting of a nitrogen-containing heterocyclic compound (d1) containing two or more nitrogen atoms, a thiol compound (d2), and a polymerization inhibitor (d3), and (F) a solvent.Type: ApplicationFiled: September 25, 2023Publication date: April 11, 2024Applicant: JSR CORPORATIONInventors: Keiichi SATOU, Akira Ishii, Takuya Tomita, Kazuhiko Koumura
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Patent number: 11473788Abstract: An outdoor unit of an air-conditioning apparatus enabling a soundproof material to correctly cover a compressor and having enhanced assembling efficiency and a method for assembling the outdoor unit of an air-conditioning apparatus are provided. The outdoor unit of an air-conditioning apparatus includes the compressor installed inside a casing and the soundproof material covering at least the compressor. The soundproof material includes a lower soundproof material surrounding a lateral periphery of a lower portion of the compressor and an upper soundproof material surrounding a lateral periphery of an upper portion of the compressor.Type: GrantFiled: December 21, 2016Date of Patent: October 18, 2022Assignee: Mitsubishi Electric CorporationInventors: Yo Kitabatake, Shigeru Hata, Keiichi Tomita, Yohei Kawaguchi, Rei Hayakawa, Kento Oku
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Publication number: 20210010712Abstract: An outdoor unit for an air-conditioning apparatus, having a compressor, a top cover configured to cover an upper surface of the compressor, and a side cover configured to cover a side of the compressor and a side of the top cover, the side cover including a rectangular cutout portion formed in a part of an upper end of the side cover. The outdoor unit has a non-water-absorbent draining element disposed across from a central portion of the top cover to a bottom portion of the cutout portion, and tilts down from the central portion of the top cover toward the bottom portion of the cutout portion.Type: ApplicationFiled: March 23, 2018Publication date: January 14, 2021Applicant: Mitsubishi Electric CorporationInventors: Kento OKU, Keiichi TOMITA, Tetsuya MASUDA
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Patent number: 10712062Abstract: A refrigerant distributor includes: a first introduction pipe configured to be open at a first end and closed at a second end and to cause refrigerant to flow from the first end toward the second end; a second introduction pipe configured to be closed in ends on both upstream and downstream sides and to cause the refrigerant to flow in a direction opposite to a refrigerant flow direction in the first introduction pipe; a plurality of branch pipes connected in series along a refrigerant flow direction on the second introduction pipe; and an adjusting pipe configured to connect the first introduction pipe and the second introduction pipe.Type: GrantFiled: October 26, 2015Date of Patent: July 14, 2020Assignee: Mitsubishi Electric CorporationInventors: Ryohei Horiba, Tatsunori Sakai, Kumi Aoki, Akihide Terao, Keiichi Tomita, Hirohito Yagi
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Publication number: 20200041145Abstract: An outdoor unit of an air-conditioning apparatus enabling a soundproof material to correctly cover a compressor and having enhanced assembling efficiency and a method for assembling the outdoor unit of an air-conditioning apparatus are provided. The outdoor unit of an air-conditioning apparatus includes the compressor installed inside a casing and the soundproof material covering at least the compressor. The soundproof material includes a lower soundproof material surrounding a lateral periphery of a lower portion of the compressor and an upper soundproof material surrounding a lateral periphery of an upper portion of the compressor.Type: ApplicationFiled: December 21, 2016Publication date: February 6, 2020Inventors: Yo KITABATAKE, Shigeru HATA, Keiichi TOMITA, Yohei KAWAGUCHI, Rei HAYAKAWA, Kento OKU
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Publication number: 20190056158Abstract: A refrigerant distributor includes: a first introduction pipe configured to be open at a first end and closed at a second end and to cause refrigerant to flow from the first end toward the second end; a second introduction pipe configured to be closed in ends on both upstream and downstream sides and to cause the refrigerant to flow in a direction opposite to a refrigerant flow direction in the first introduction pipe; a plurality of branch pipes connected in series along a refrigerant flow direction on the second introduction pipe; and an adjusting pipe configured to connect the first introduction pipe and the second introduction pipe.Type: ApplicationFiled: October 26, 2015Publication date: February 21, 2019Applicant: Mitsubishi Electric CorporationInventors: Ryohei HORIBA, Tatsunori SAKAI, Kumi AOKI, Akihide TERAO, Keiichi TOMITA, Hirohito YAGI
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Patent number: 9964342Abstract: An outdoor unit for an air-conditioning apparatus includes a machine chamber in which a compressor serving as a vibration source and at least two refrigerant-circuit components and are provided. One of the refrigerant-circuit components and is provided with an elastic tab while an other refrigerant-circuit component or is provided with a catching portion that is engageable with the elastic tab. The refrigerant-circuit components and are brought into close contact with each other by the elastic tab and the catching portion.Type: GrantFiled: November 11, 2015Date of Patent: May 8, 2018Assignee: Mitsubishi Electric CorporationInventors: Yo Kitabatake, Shigeru Hata, Keiichi Tomita, Yohei Kawaguchi
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Publication number: 20160146512Abstract: An outdoor unit for an air-conditioning apparatus includes a machine chamber in which a compressor serving as a vibration source and at least two refrigerant-circuit components and are provided. One of the refrigerant-circuit components and is provided with an elastic tab while an other refrigerant-circuit component or is provided with a catching portion that is engageable with the elastic tab. The refrigerant-circuit components and are brought into close contact with each other by the elastic tab and the catching portion.Type: ApplicationFiled: November 11, 2015Publication date: May 26, 2016Inventors: Yo KITABATAKE, Shigeru HATA, Keiichi TOMITA, Yohei KAWAGUCHI
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Publication number: 20110126567Abstract: In a multi-unit type air conditioner in which a plurality of indoor units are connected to one outdoor unit 1 through a plurality of indoor/outdoor communication lines 7, the plurality of communication lines 7 are fixed to a main body of the outdoor unit 1 by a communication-line fixture 10 collectively.Type: ApplicationFiled: August 12, 2010Publication date: June 2, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tatsuya ASANUMA, Keiichi Tomita
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Patent number: 7305001Abstract: The present invention provides a management table that uses only specific symbols for upstream signals and other symbols for downstream signals, within a hyperframe (ADSL communication unit). Communication is performed by switching streams between the upstream and downstream, in accordance with the symbols stored in the management table. Upon transmitting a predetermined number of hyperframes, a processor transmits a SEGUE signal instead of a REVERB signal in the beginning of the next hyperframe.Type: GrantFiled: April 28, 2003Date of Patent: December 4, 2007Assignee: Panasonic Communications Co., Ltd.Inventors: Nobuhiko Noma, Tatsuo Imai, Keiichi Tomita
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Patent number: 7295600Abstract: The present invention monitors communication status during a data communication, determines whether the current communication status needs a re-initialization, requests a re-initialization of an opposing ADSL modem apparatus by transmitting ClearEOC when a re-initialization is needed, receives a response to a re-initialization request from the opposing ADSL modem apparatus, and performs a re-initialization after a predetermined time period.Type: GrantFiled: July 1, 2002Date of Patent: November 13, 2007Assignee: Panasonic Communications Co., Ltd.Inventors: Nobuhiko Noma, Tatsuo Imai, Keiichi Tomita
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Patent number: 7152101Abstract: A communication control method detects whether an opposing apparatus is capable of performing an abbreviated procedure during a handshake step, declares an initiation of the abbreviated procedure if the opposing apparatus is capable of performing the abbreviated procedure, omits a negotiation prior to transmitting a MEDLEY signal, allows a remote side to transmit capacity information and reception result once to a center side after exchanging the MEDLEY signal, and further allows the center side to transmit the final capacity and transmission speed information to the remote side, in order to complete the initialization sequence.Type: GrantFiled: June 28, 2002Date of Patent: December 19, 2006Assignee: Panasonic Communications Co., Ltd.Inventors: Nobuhiko Noma, Tatsuo Imai, Keiichi Tomita
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Patent number: 7082158Abstract: A control monitors communication status during a data communication and determines a re-initialization is necessary in the current communication status. If the re-initialization is necessary, a pre-selected sub-carrier topology is inverted to request the re-initialization to an ADSL modem apparatus, which is installed by a central system. Upon receiving a reply to the re-initialization request from the ADSL modem apparatus, the re-initialization is performed after an expiration of a predetermined time period.Type: GrantFiled: April 24, 2002Date of Patent: July 25, 2006Assignee: Panasonic Communications Co., Ltd.Inventors: Nobuhiko Noma, Keiichi Tomita, Tatsuo Imai
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Publication number: 20040022310Abstract: A center side transmits a downstream signal by using a specified carrier preset by a communication standard, when a handshake sequence is initiated, and retransmits a downstream signal by using an alternate carrier shifted toward a higher frequency instead of a specified carrier in the proximity of carriers used for the upstream, when a line connection with an opposing ADSL modem apparatus fails during the signal transmission using the specified carrier. Further, a remote side detects a signal of a specified carrier preset by a communication standard from downstream, when a handshake sequence is initiated, and detects an alternate carrier signal in accordance with a carrier change made by the transmitter side, when the signal of the specified carrier fails to be received within a predetermined time since the initiation of the handshake sequence.Type: ApplicationFiled: May 6, 2003Publication date: February 5, 2004Applicant: Panasonic Communications Co., Ltd.Inventors: Nobuhiko Noma, Tatsuo Imai, Keiichi Tomita
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Publication number: 20040022270Abstract: The present invention provides a management table that uses only specific symbols for upstream signals and other symbols for downstream signals, within a hyperframe (ADSL communication unit). Communication is performed by switching streams between the upstream and downstream, in accordance with the symbols stored in the management table. Upon transmitting a predetermined number of hyperframes, a processor transmits a SEGUE signal instead of a REVERB signal in the beginning of the next hyperframe.Type: ApplicationFiled: April 28, 2003Publication date: February 5, 2004Applicant: Panasonic Communications Co., Ltd.Inventors: Nobuhiko Noma, Tatsuo Imai, Keiichi Tomita
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Publication number: 20040017849Abstract: An ADSL modem apparatus that serves as an ATU-R receives a signal in the hyperframe format having FEXT and NEXT parts, when an initialization sequence is started, the signal configured with a known number of symbols. The received signal is sampled by an AFE and stored in a buffer memory of an FFT unit. A processor establishes a symbol synchronization and a hyperframe synchronization, upon receiving an original signal, based on sample data of the original signal, the original signal having REVERB signals during a FEXT period and non-REVERB signals (distinguishable from REVERB signals) during a NEXT period.Type: ApplicationFiled: April 17, 2003Publication date: January 29, 2004Applicant: Panosonic Communications Co., Ltd.Inventors: Nobuhiko Noma, Tatsuo Imai, Keiichi Tomita
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Publication number: 20030223483Abstract: A constellation encoder provides carrier data with a topology inverted at 180 degrees every 8 symbols to an IFFT unit to transmit the topology inversion signal to a line. Upon receiving the signal from the line during the transmission, an FFT unit performs a fast Fourier transformation on the signal in order to obtain constellation data. Then, an AGC controller performs an AGC on the data. Further, a CAPC unit performs a CAPC, and a timing regenerator monitors whether a timing regeneration is necessary. During a period of signal hybrid echo due to the carrier topology inversion transmission, processes of the AGC, CAPC and timing regeneration are frozen.Type: ApplicationFiled: March 27, 2003Publication date: December 4, 2003Applicant: Panasonic Communications Co., Ltd.Inventors: Nobuhiko Noma, Keiichi Tomita
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Publication number: 20030223485Abstract: An ADSL communication apparatus includes a transceiver that executes an initialization sequence, a host that is connected to a user terminal, an AFE unit, a driver that transmits an analog signal (converted by the AFE unit) to a line, and a receiver that receives the analog signal from the line. The transceiver retrieves a signal component of a known carrier from the front-end of a hyperframe, based on an arbitrary symbol breakpoint. By calculating outer product values between the previously retrieved signal component and the currently retrieved signal component, the symbol breakpoint is adjusted in accordance with the patterns of the outer product values.Type: ApplicationFiled: April 4, 2003Publication date: December 4, 2003Applicant: Panasonic Communications Co., Ltd.Inventors: Nobuhiko Noma, Keiichi Tomita
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Publication number: 20030223459Abstract: A receiver receives an analog signal that is modulated from transmission data using a multi-carrier method, and a gain controller controls a gain of the received analog signal. An AD converter samples the received analog signal processed by the gain controller so that an FFT unit can perform a Fourier transform on the sampling data and demodulate the data into carrier units. Then, a sync symbol, which is transmitted from an opposing side after the data communication is initiated using the multi-carrier method, is retrieved from the demodulated data. By analyzing individual signal value of a plurality of carriers within the retrieved sync symbol, an appropriate gain control is instructed for the gain controller.Type: ApplicationFiled: March 27, 2003Publication date: December 4, 2003Applicant: PANASONIC COMMUNICATIONS CO., LTD.Inventors: Keiichi Tomita, Nobuhiko Noma