Patents by Inventor Mitsumasa Kagomoto
Mitsumasa Kagomoto 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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Publication number: 20160305562Abstract: A non-return valve mechanism is mountable on a one-way valve device to regulate flow of a fluid. The one-way valve device includes a flow channel in which the fluid flows and a shutoff valve arranged in a middle portion of the flow channel and switchable between an open state and a closed state. The non-return valve mechanism is mountable in a mounting space downstream from the shutoff valve in the flow channel of the one-way valve device A regulator valve includes a cylindrical valve body and hits a communicating channel connecting an upstream side and a downstream side, and a small-diameter insertion portion that is cylindrical and has a smaller diameter than the valve body, and is located upstream from the valve body. The small-diameter insertion portion is configured to be placed into a small-diameter flow channel portion with a reduced flow channel diameter to close the regulator valve.Type: ApplicationFiled: April 14, 2016Publication date: October 20, 2016Inventors: Mitsumasa KAGOMOTO, Akira OI
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Patent number: 7111818Abstract: A safety valve comprises a pressure receiving hole (20), an actuation chamber (21), a discharging hole (22) and an alloy accommodating chamber (25). An alloy (27) of a low-temperature melting point is accommodated within the alloy accommodating chamber (25). A sealing plate (33) seals the pressure receiving hole (20). This sealing plate (33) has a portion, which faces the pressure receiving hole (20), provided with a breakable sealing portion (35) that breaks up with a predetermined pressure. An actuator (28) is arranged within the actuation chamber (21). The actuator (28) has one end formed with a first back-up portion (30) which supports the breakable sealing portion (35) and has the other end formed with a second back-up portion (31) which is supported by the alloy (27).Type: GrantFiled: March 21, 2005Date of Patent: September 26, 2006Assignee: Neriki Valve Co., Ltd.Inventors: Masaru Takeda, Akira Oi, Mitsumasa Kagomoto, Shinji Maekawa, Kazuyuki Miyata, Mari Shiotsuki
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Publication number: 20050211940Abstract: A safety valve comprises a pressure receiving hole (20), an actuation chamber (21), a discharging hole (22) and an alloy accommodating chamber (25). An alloy (27) of a low-temperature melting point is accommodated within the alloy accommodating chamber (25). A sealing plate (33) seals the pressure receiving hole (20). This sealing plate (33) has a portion, which faces the pressure receiving hole (20), provided with a breakable sealing portion (35) that breaks up with a predetermined pressure. An actuator (28) is arranged within the actuation chamber (21). The actuator (28) has one end formed with a first back-up portion (30) which supports the breakable sealing portion (35) and has the other end formed with a second back-up portion (31) which is supported by the alloy (27).Type: ApplicationFiled: March 21, 2005Publication date: September 29, 2005Inventors: Masaru Takeda, Akira Oi, Mitsumasa Kagomoto, Shinji Maekawa, Kazuyuki Miyata, Mari Shiotsuki
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Patent number: 6626204Abstract: An accommodation portion (53) is formed at a position where it faces a check valve member (42) through a chamber inlet (41a) of a check valve chamber (41). An opening means (51) is attached in the accommodation portion (53). This opening means (51) switches over between a valve opening position (Y) and a valve-opening cancellation position (X). A lock means (55) is attached between a peripheral wall of the accommodation portion (53) and the opening means (51). The lock means (55) changes over between a lock position (L) where it limits an advancement of the opening means (51) from the valve-opening cancellation position (X) and a lock cancellation position (M) where it allows the advancement. A valve-opening actuation means (60) is provided with a lock cancellation means (61). A magnetic force is made to occur between the lock cancellation means (61) and the lock means (55). The magnetic force changes over the lock means (55) to the lock cancellation position (M).Type: GrantFiled: November 14, 2001Date of Patent: September 30, 2003Assignee: Kabushiki Kaisha NerikiInventors: Akira Oi, Mari Shiotsuki, Mitsumasa Kagomoto
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Publication number: 20030015678Abstract: A housing (5) is formed with a cylinder communication bore (6) able to communicate with an interior space of a gas cylinder (1), a gas passage (7) and a joint attaching portion (8). The joint attaching portion (8) is provided with an engaged portion (21). A joint (14) is attached to the joint attaching portion (8). The joint (14) is provided with a connecting portion (16) to which a gas instrument is connected, a communication passage (18), and an engaging portion (19). The connecting portion (16) is opened to provide an instrument communication bore (17). The instrument communication bore (17) communicates with the cylinder communication bore (6) through the communication passage (18) and the gas passage (7) in order. The engaging portion (19) meshes with the engaged portion (21) unseparably.Type: ApplicationFiled: July 16, 2002Publication date: January 23, 2003Applicant: Kabushiki Kaisha NERIKIInventors: Mitsumasa Kagomoto, Akira Oi, Mari Shiotsuki
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Publication number: 20020056476Abstract: An accommodation portion (53) is formed at a position where it faces a check valve member (42) through a chamber inlet (41a) of a check valve chamber (41). An opening means (51) is attached in the accommodation portion (53). This opening means (51) switches over between a valve opening position (Y) and a valve-opening cancellation position (X). A lock means (55) is attached between a peripheral wall of the accommodation portion (53) and the opening means (51). The lock means (55) changes over between a lock position (L) where it limits an advancement of the opening means (51) from the valve-opening cancellation position (X) and a lock cancellation position (M) where it allows the advancement. A valve-opening actuation means (60) is provided with a lock cancellation means (61). A magnetic force is made to occur between the lock cancellation means (61) and the lock means (55). The magnetic force changes over the lock means (55) to the lock cancellation position (M).Type: ApplicationFiled: November 14, 2001Publication date: May 16, 2002Inventors: Akira Oi, Mari Shiotsuki, Mitsumasa Kagomoto
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Publication number: 20010023712Abstract: A cylinder (32) is hermetically attached into an attaching bore (31) formed within a housing (4) and is made to advance and retreat between a take-out position (A) and a charging position (B). A check valve chamber (28) is formed within the cylinder (32). A check spring (43) resiliently pushes a check valve member (29) inserted into the check valve chamber (28) toward a check valve seat (42). The cylinder (32) has an outer surface provided with an actuation portion (50). If the actuation portion (50) is pushed, it retracts the cylinder (32) toward the charging position (B). Provided at a position opposing to the check valve member 29 through a chamber inlet (40) of the check valve chamber (28) is a receiving portion (46), which receives the check valve member (29) on a halfway while the cylinder (32) is retreating.Type: ApplicationFiled: March 22, 2001Publication date: September 27, 2001Inventors: Akira Oi, Mari Shiotsuki, Mitsumasa Kagomoto
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Patent number: 6293307Abstract: A cylinder (32) is hermetically attached into an attaching bore (31) formed within a housing (4) and is made to advance and retreat between a take-out position (A) and a charging position (B). A check valve chamber (28) is formed within the cylinder (32). A check spring (43) resiliently pushes a check valve member (29) inserted into the check valve chamber (28) toward a check valve seat (42). The cylinder (32) has an outer surface provided with an actuation portion (50). If the actuation portion (50) is pushed, it retracts the cylinder (32) toward the charging position (B). Provided at a position opposing to the check valve member 29 through a chamber inlet (40) of the check valve chamber (28) is a receiving portion (46), which receives the check valve member (29) on a halfway while the cylinder (32) is retreating.Type: GrantFiled: March 22, 2001Date of Patent: September 25, 2001Assignee: Kabushiki Kaisha NerikiInventors: Akira Oi, Mari Shiotsuki, Mitsumasa Kagomoto