"Radio has no future."
Lord Kelvin, British mathematician and physicist ; 1897
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| Number | Title | Issue Date |
| 8022585 | In-vehicle AC generator having an enclosed regulator holding unit There is provided an in-vehicle AC generator having a regulator assembly that is mounted in the bracket of the AC generator. The regulator holding unit provided in the regulator assembly has a containing portion in which at least the whole periphery of an opening is... | 09/20/2011 |
| 8012574 | Carbon fiber Ti-Ai composite material and method for preparation thereof To provide a carbon fiber Ti—Al composite material having hardness, heat resistance and abrasion resistance, having reduced weight and improved strength and thermal conductivity and being excellent in uniformity of the quality. A carbon fiber Ti—Al compos... | 09/06/2011 |
| 7956079 | Antihepatitis C virus agent and anti-HIV agent An anti-hepatitis C virus agent or anti-HIV agent comprising, as an active ingredient, a fullerene derivative which has a nitrogen atom forming a ring together with adjacent bonded carbon atom pairs constituting the carbon cluster skeleton of the fullerene or a quat... | 06/07/2011 |
| 7751193 | Electronic control apparatus An electronic control apparatus can be reduced in size and cost by eliminating certain component parts such as a power board, etc. The apparatus includes a housing, a heat sink, semiconductor switching elements having terminals and mounted on the heat sink, a circui... | 07/06/2010 |
| 7749597 | Carbon fiber Ti-Al composite material and process for producing the same To provide a carbon fiber Ti—Al composite material having hardness, heat resistance and abrasion resistance, having reduced weight, improved strength, elastic modulus and thermal conductivity and being excellent in the uniformity of the quality. A carbon fi... | 07/06/2010 |
| 7563502 | Fine carbon fiber-metal composite material and method for production thereof To provide a fine carbon fiber/metal composite material having high mechanical strength, a high thermal conductivity and a low coefficient of thermal expansion and suitable as a substrate for an electronic device. A fine carbon fiber/metal composite material,... | 07/21/2009 |
| 7473410 | Form of carbon C60 and C70 carbon atom compounds are prepared by evaporating graphite in an inert quenching gas. The vapor of carbon is collected and is selectively extracted with an organic non-polar solvent. ... | 01/06/2009 |
| 7069252 | Electronic transaction server, client for seller, client for buyer and electronic transaction method A user registration processor unit registers the user registration information to the database, which includes the public key certification acquired from the certification authority that has jurisdiction over each party by the request from the transaction party incl... | 06/27/2006 |
| 7048839 | System and method for generating high pressure hydrogen The invention provides a system and a method for generating high pressure hydrogen that is able to efficiently and safely generate hydrogen by only the electrolysis of water even when using electric power generated by a frequently varying natural energy, such as sun... | 05/23/2006 |
| 6789197 | Apparatus for data copyright management system A data copyright management apparatus is used with a user terminal and comprises a CPU, a CPU bus, ROM, EEPROM, and RAM. The CPU, ROM, EPROM, and RAM are connected to the CPU bus, and a system bus of a device which utilizes the data can be connected to the CPU bus. ... | 09/07/2004 |
| 6744894 | Data management system The present invention provides a system to ensure security of data in a computer network system. A center certifies a public-key of user of the system and distributes a secret-key. A first system comprises the center in a network, an information provider and a plura... | 06/01/2004 |
| 6741991 | Data management system To prevent piracy or leakage of data content, a cryptography technique and electronic watermark technique are combined together and used. In a data content supplied to a user, a user data is entered as electronic watermark by a data management center, and the data c... | 05/25/2004 |
| 6734461 | SiC wafer, SiC semiconductor device, and production method of SiC wafer A SiC wafer comprises a 4H polytype SiC substrate 2 in which the crystal plane orientation is substantially {03-38}, and a buffer layer 4 composed of SiC formed over this SiC substrate 2. The {03-38} plane forms an angle of approximately 35° wi... | 05/11/2004 |
| 6721887 | Data copyright management system A system is provided which manages the copyright of a plurality of data in a database. A data copyright management system is provided in which a primary user edits data which he or she obtains and supplies edited data to a secondary user. In a case where new data is... | 04/13/2004 |
| 6540853 | Super water-absorbent composite and method for preparation thereof An absorbent composite sheet mainly consisting of a fibrous substrate web, a super absorbent polymer, and a bonding component bonding both of them with each other, wherein (a) the fibrous substrate web is a non-bonded web with a few of the constituent fib... | 04/01/2003 |
| 6506353 | Process and apparatus for producing iron carbide Iron carbide is produced by an apparatus comprising first fluidized bed reactor 4 and second fluidized bed reactor 5, wherein the charged grainy iron oxide is reduced and carburized by the high temperature and high pressure gas being introduced from the b... | 01/14/2003 |
| 6463536 | Data copyright management system A system is provided which manages the copyright of a plurality of data in a database. A data copyright management system is provided in which a primary user edits data which he or she obtains and supplies edited data to a secondary user. In a case where ... | 10/08/2002 |
| 6449717 | Data copyright management system A data copyright management system comprises a database for storing original data, a key control center for managing crypt keys, copyright management center for managing data copyrights, and a communication network for connecting these sections. Data supp... | 09/10/2002 |
| 6438694 | Apparatus for data copyright management system A data copyright management apparatus for handling data copyrights, and data of digital cash and video conference system is provided. The data copyright management apparatus comprises a CPU, ROM, EEPROM, and RAM. The ROM, EEPROM, and RAM are connected to ... | 08/20/2002 |
| 6424715 | Digital content management system and apparatus There are provided a digital content management apparatus which further embodies a digital content management apparatus used with a user terminal, and a system which protects the secrets of a digital content. The system and the apparatus are a real time o... | 07/23/2002 |
| 6416728 | Method for producing iron carbide Provided is a method for producing iron carbide in which free carbon is generated with difficulty. When iron carbide is produced by reducing and carburizing iron-containing raw materials for iron making using a reaction gas mainly containing hydrogen and ... | 07/09/2002 |
| 6408390 | Apparatus for data copyright management system A data copyright management apparatus for handling data copyrights, and data of digital cash and video conference system is provided. The data copyright management apparatus comprises a CPU, ROM, EEPROM, and RAM. The ROM, EEPROM, and RAM are connected to ... | 06/18/2002 |
| 6343283 | Data copyright management system A data copyright management system is provided, in which a primary user edits a received data and supplies the edited data to a secondary user. The copyright management system comprises a database and a key control center, and uses a primary copyright lab... | 01/29/2002 |
| 6272635 | Data copyright management system A system is provided which manages the copyright of a plurality of data in a database. A data copyright management system is provided in which a primary user edits data which he or she obtains and supplies edited data to a secondary user. In a case where ... | 08/07/2001 |
| 6193699 | Medical tube A medical tube made of an organic polymer having a mechanical loss tangent of at least 0.5 at body temperature and a modulus of transverse elasticity of 1-1000 MPa at body temperature. The medical tube of the present invention can be easily inserted into ... | 02/27/2001 |
| 6182218 | Digital content management system using electronic watermark A system for managing a digital content, particularly a digital content to which a copyright is claimed, and a system for supplying a public-key which is used in the management of the digital content are provided. The digital content management program is... | 01/30/2001 |
| 6174000 | Screw joint for oil well piping A threaded joint with trapezoidal threads for oil well pipes superior in sealing performance: having a load flank angle θ1 of each thread satisfying desired conditions; having a shape of the thread such that opposite flanks of the trapezoidal thread come... | 01/16/2001 |
| 6135798 | Automotive battery plug An automotive battery plug (1), once fitted in a cigar lighter socket (111), is retained therein with proper retentive force. When it is pulled out of the socket, the retentive force decreases, allowing ease in the removal of the plug (1). A slider (25, 3... | 10/24/2000 |
| 6128605 | Apparatus for data copyright management system A data copyright management apparatus for handling data copyrights and data of digital cash, and for use in video conference systems is provided. The data copyright management apparatus is connected to a user terminal, and is used for performing decryptio... | 10/03/2000 |
| 6126315 | Container formed of lamination sheet A liquid container having a stable shape that is easy to fill and that enables the user to pour out liquid to the last drop into an intended target using one hand only and without spilling the liquid. An internal space of a container is defined by a front... | 10/03/2000 |
| 6097818 | Data copyright management method The present invention provides a process for managing data copyright in the case when a primary user produces new data by editing a plurality of original data which have been supplied from data broadcasting, a recording medium or a database, and supplies ... | 08/01/2000 |
| 6097816 | Crypt key system A crypt key system for decrypting encrypted data for use, by a permit key including a decryption key, comprising a database/charging center, a broadcasting station, a receiving device and a communication device. The permit key is supplied to the broadcast... | 08/01/2000 |
| 6081794 | Data copyright management system A data copyright management system is provided, in which a primary user edits a received data and supplies the edited data to a secondary user. The copyright management system comprises a database and a key control center, and uses a primary copyright lab... | 06/27/2000 |
| 6076077 | Data management system A system for dealing in an original data content and an edited data content. A data content is handled as an object, and the data content is edited by editing a data content, functioning as an object, in accordance with an edit program. The edited data co... | 06/13/2000 |
| 6069952 | Data copyright management system A data copyright management system comprises a database for storing original data, a key control center for managing crypt keys, copyright management center for managing data copyrights, and a communication network for connecting these sections. Data supp... | 05/30/2000 |
| 6002772 | Data management system To prevent piracy or leakage of data content, a cryptography technique and electronic watermark technique are combined together and used. In a data content supplied to a user, a user data is entered as electronic watermark by a data management center, and... | 12/14/1999 |
| 5974141 | Data management system The present invention provides a system to ensure security of data in a computer network system. A center certifies a public-key of user of the system and distributes a secret-key. A first system comprises the center in a network, an information provider ... | 10/26/1999 |
| 5914449 | Method for increasing storage lipid content in plant seed In order to obtain a crop which provides an increased storage lipid content in its seed, the activity of cytosolic pyruvate kinase of a seed is substantially lowered as compared with the endogenous activity of pyruvate kinase in the plant seed. Preferably... | 06/22/1999 |
| 5901339 | Pay broadcasting system A system for the so-called "pay-per-program" is provided for viewing individual program on pay basis without signing a comprehensive contract. In response to a request for viewing a pay program executed via public telephone line from an applicant for view... | 05/04/1999 |
| 5867579 | Apparatus for data copyright management system A data copyright management apparatus for handling data copyrights, and data of digital cash and video conference system is provided. The data copyright management apparatus comprises a CPU, ROM, EEPROM, and RAM. The ROM, EEPROM, and RAM are connected to ... | 02/02/1999 |