Patents by Inventor Minoru Okumura
Minoru Okumura 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: 5936591Abstract: A multi-beam feeding apparatus according to the present invention is a feeding apparatus for a multi-beam antenna comprising a reflector and a primary radiator comprising a plurality of element antennas, and the apparatus is provided with a plurality of beam forming networks for setting an excitation distribution relative to the element antenna necessary for every beam. Each beam forming network is connected via a combiner (a divider) disposed to every of all the element antennas. According to this construction, not only there is such an advantage that a variation of capacity of communication between the beams and the like can be flexibly responded, but also there are such effects that a beam forming network can be so simply constructed that the same systems are only combined, a power can be more effectively used, such a problem as a heat generation and the like can be reduced. Moreover, a plurality of missions can be easily fused.Type: GrantFiled: March 6, 1997Date of Patent: August 10, 1999Assignees: Advanced Space Communications Research Laboratory (ASC), Kabushiki Kaisha ToshibaInventors: Yasuhiko Yamasa, Hiroki Shoki, Minoru Okumura
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Patent number: 5307080Abstract: An antenna apparatus includes a power converting section which receives microwave energy and converts it to DC power. An actuator for folding/unfolding a mirror-supporting member and an actuator for adjusting the configuration of an antenna reflection mirror are driven and controlled by the DC power supplied from the power converting section.Type: GrantFiled: October 26, 1992Date of Patent: April 26, 1994Assignee: Kabushiki Kaisha ToshibaInventor: Minoru Okumura
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Patent number: 4948413Abstract: A mixture of 2-piperidone and an N-acyllactam compound for use as a soil amending agent which is provided in a molar ratio of 2-piperidone to N-acyllactam compound in the range from 0.1:1 to 10:1 is effective in the promotion of plant growth.Type: GrantFiled: May 16, 1988Date of Patent: August 14, 1990Assignee: Taki Chemical Co., Ltd.Inventors: Yoshio Maekawa, Osamu Yagyu, Hironori Mizuno, Minoru Okumura, Shigeru Isoda, Kaoru Yagi
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Patent number: 4935957Abstract: A key telephone system has an oscillation preventing circuit comprising a termination impedance element, said circuit is a switching element and connected between the ground and another circuit which includes an impedance compensating circuit, therein. The switching element is turned ON upon oscillation of the impedance compensating circuit due to any remarkable impedance fluctuation in the signal transmission line, thereby effectively suppressing such oscillation of the impedance compensating circuit to maintain a favorable transmission efficiency.Type: GrantFiled: June 6, 1989Date of Patent: June 19, 1990Assignees: Nitsuko Limited, Nippon Telegraph and Telephone CorporationInventors: Kinzi Tanaka, Kuniaki Shimoseki, Tetsuya Hiraji, Yoshiji Tanimoto, Minoru Okumura
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Patent number: 4908373Abstract: The present invention relates to 1-[2-(4-hydroxybenzoyl)ethanoyl]-2-piperidone which is a novel compound of N-acyl lactam compounds and exhibit excellent effects in promoting fermentation in alcohol fermentation.This novel compound can be prepared by converting 2-(4-benzyloxybenzoyl)acetic acid into the acid chloride, then coupling the acid chloride with 2-piperidone or an alkylate of 2-piperidone and then subjecting to debenzylation.Type: GrantFiled: December 27, 1988Date of Patent: March 13, 1990Assignee: Taki Chemical Co., Ltd.Inventors: Minoru Okumura, Yoshio Maekawa, Hironori Mizuno, Osamu Yagiyu
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Patent number: 4857358Abstract: Disclosed is a novel powdery compound emulsifier, obtained by adding crystalline alpha-maltose to a liquid or paste compound emulsifier containing two or more members selected from the group consisting of sucrose fatty acid esters, glycerine fatty acid esters and sorbitan fatty acid esters; and converting the crystalline alpha-maltose into crystalline beta-maltose hydrate to effect pulverization, as well as its preparation.Type: GrantFiled: June 29, 1987Date of Patent: August 15, 1989Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku KenkyujoInventor: Minoru Okumura
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Patent number: 4831516Abstract: A data transmission system between a main CPU and a plurality of sub-CPU's includes a data bus connected between them, a CPU select line for transmitting a CPU select signal from the main CPU to the sub-CPU's, a latch circuit for providing a wait signal to the main CPU upon write or read in the main CPU with respect to the sub-CPU's and a wait clear line connected between the respective CPU's to provide to the latch circuit a wait clear signal upon completion of input and output of the sub-CPU to release the waited state of the main CPU, the transmission system being thereby simplified to reduce installation space and wiring labor.Type: GrantFiled: February 18, 1986Date of Patent: May 16, 1989Assignees: Nitsuko Limited, Nippon Telegraph and Telephone CorporationInventors: Kinzi Tanaka, Minoru Shigematsu, Yoshiji Tanimoto, Minoru Okumura
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Patent number: 4801394Abstract: A heat transfer promoter composition comprises a triazine-dithiol derivative represented by the general formula ##STR1## wherein R represents --NHR' or --NR'.sub.2 wherein: R' is a hydrocarbon group; M is selected from the group consisting of hydrogen, alkali metals, and alkaline earth metals; and at least one of M groups is alkaline metal or alkaline earth metal. This heat transfer promotor is applied to that surface of a condenser tube to be contacted by a vapor to be condensed.Type: GrantFiled: November 23, 1987Date of Patent: January 31, 1989Assignees: Yoshiro Nakamura, Kunio Mori, Kabushiki Kaisha ToshibaInventors: Yoshiro Nakamura, Kunio Mori, Minoru Okumura, Yoshio Mochida, Matsuo Miyazaki
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Patent number: 4660219Abstract: An extension ringing arrangement for a key telephone system wherein a plurality of key telephone sets are connected respectively through associated plurality of channel units to main equipment including a main CPU. The channel units as well as an interface unit, including a sub-CPU interconnected to the main CPU are connected in parallel to the main equipment. The interface unit is of the type used for interconnecting individual line telephone sets to the key telephone system, whereby a ringing of a selected one of the key telephone sets from a calling party is made possible, with a simple arrangement effectively utilizing existing components of the key telephone system.Type: GrantFiled: February 18, 1986Date of Patent: April 21, 1987Assignees: Nitsuko Limited, Nippon Telegraph and Telephone CorporationInventors: Kinzi Tanaka, Toru Tagawa, Yoshiji Tanimoto, Minoru Okumura
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Patent number: 4641337Abstract: A key telephone system comprising a main equipment and a plurality of key telephones connected to the main equipment and comprising elements for operatively connecting another similar key telephone system. The main equipment in the key telephone system comprises a system call transmitting interface and a system call receiving interface which are connected through connecting lines to a system call receiving interface and a system call transmitting interface in a main equipment of another similar key telephone system, respectively. Each key telephone in both systems comprises an additional key for selecting the system call transmitting interface of its own main equipment. By use of the additional key in one key telephone, a speech path can be established between the one key telephone and another key telephone in another key telephone system through both main equipments and the connecting line.Type: GrantFiled: March 25, 1986Date of Patent: February 3, 1987Assignees: Nitsuko Limited, Nippon Telegraph and Telephone CorporationInventors: Jouji Tanaka, Tetunobu Watanabe, Yoshiji Tanimoto, Minoru Okumura
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Patent number: 4601933Abstract: A heat transfer promoter composition comprises a triazine-dithiol derivative represented by the general formula ##STR1## wherein R represents --NHR' or --NR'.sub.2 wherein: R' is a hydrocarbon group; M is selected from the group consisting of hydrogen, alkali metals, and alkaline earth metals; and at least one of M groups is alkaline metal or alkaline earth metal. This heat transfer promotor is applied to that surface of a condenser tube to be contacted by a vapor to be condensed.Type: GrantFiled: October 18, 1984Date of Patent: July 22, 1986Assignees: Yoshiro Nakamura, Kunio Mori, Kabushiki Kaisha ToshibaInventors: Yoshiro Nakamura, Kunio Mori, Minoru Okumura, Yoshio Mochida, Matsuo Miyazaki