[FUKUMOTO, Atsushi 福本　敦, FUKUMOTO, Atsushi 福本　敦, UEDA, Mitsunori 植田　充紀, FUKUMOTO, Atsushi 福本　敦, UEDA, Mitsunori 植田　充紀, YOSHIDA, Hiroshi 吉田　浩, FUKUMOTO, Atsushi 福本　敦, UEDA, Mitsunori 植田　充紀, YOSHIDA, Hiroshi 吉田　浩, MATSUI, Takeshi 松井　健] 1-7-1 Konan, Minato-ku, Tokyo 〒1080075 東京都港区港南１丁目７番１号 Tokyo1080075 This optical amplification device is provided with: a conversion unit capable of converting polarization state; a first optical element, which has first and second incident ports, and which outputs, toward the conversion unit, a first laser beam inputted to the first incident port, said first laser beam being in a first polarization state, and a second laser beam inputted to the second incident port, said second laser beam being in a second polarization state; a second optical element, which is capable of outputting, as a laser beam in the second polarization state, the first laser beam the polarization state of which has been converted, and which is capable of outputting, toward an output unit to the outside, the second laser beam the polarization state of which has been converted; and an optical amplification unit, which amplifies the first laser beam outputted as the laser beam in the second polarization state by means of the second optical element, and which inputs, as the second laser beam, the amplified first laser beam to the second incident port of the first optical element.

[MOMMA, Toru 門間　徹, MOMMA, Toru 門間　徹, FUKUMOTO, Yasuhiro 福本　靖博, MOMMA, Toru 門間　徹, FUKUMOTO, Yasuhiro 福本　靖博, NISHI, Koji 西　幸治, MOMMA, Toru 門間　徹, FUKUMOTO, Yasuhiro 福本　靖博, NISHI, Koji 西　幸治, GOTO, Shigehiro 後藤　茂宏, MOMMA, Toru 門間　徹, FUKUMOTO, Yasuhiro 福本　靖博, NISHI, Koji 西　幸治, GOTO, Shigehiro 後藤　茂宏, JO, Kenichiro 城　憲一郎, MOMMA, Toru 門間　徹, FUKUMOTO, Yasuhiro 福本　靖博, NISHI, Koji 西　幸治, GOTO, Shigehiro 後藤　茂宏, JO, Kenichiro 城　憲一郎, TANAKA, Atsushi 田中　淳] Tenjinkita-machi 1-1, Teranouchi-agaru 4-chome, Horikawa-dori, Kamigyo-ku, Kyoto-shi, Kyoto 〒6028585 京都府京都市上京区堀川通寺之内上る４丁目天神北町１番地の１ Kyoto6028585 In the present invention, an upper plate on which a substrate is placed is cooled or heated by a heat treatment unit. The temperature of the heat treatment unit is adjusted by a temperature adjustment unit. The temperature of the upper plate is detected. On the basis of the temperature thus detected, a control value to be given to the temperature adjustment unit for the purpose of maintaining the temperature of the upper plate at a set value is calculated as a control operation value. In the case where the control operation value is reduced to below a second threshold value, a first control of giving the control operation value to the temperature adjustment unit is performed. In the case where the control operation value is increased to be equal to or higher than a first threshold value, a second control of giving a control set value higher than the control operation value to the temperature adjustment unit is performed.

[Inoue Atsushi(Tokyo,JPX), Ishiyama Masahiro(Tokyo,JPX), Fukumoto Atsushi(Tokyo,JPX), Tsuda Yoshiyuki(Tokyo,JPX), Shimbo Atsushi(Tokyo,JPX), Okamoto Toshio(Tokyo,JPX)] A packet transfer scheme for realizing a control of a packet inspection device to pass only packets from those mobile computers that can be recognized as authenticated among non-management target mobile computers that had moved inside the network, to outside the network. A packet inspection device judges whether a passing of a packet transmitted from a mobile computer other than own management target computers to outside the own network is permitted or not, according to a mobile computer identification information contained in the packet, and sends a message indicating a refusal of the passing of the packet to the mobile computer when the passing of the packet is judged to be not permitted; and then transfers the packet when the passing of the packet is judged to be permitted; and also checks whether a user information regarding a user of the mobile computer satisfies a prescribed condition or not, upon receiving a message requesting a key information for generating the mobile computer identification information from the mobile computer, and returns a requested key information to the mobile computer when the user information satisfies the prescribed condition.

[Atsushi Inoue, Masahiro Ishiyama, Atsushi Fukumoto, Yoshiyuki Tsuda, Atsushi Shimbo, Toshio Okamoto] JP Kawasaki A packet processing and packet transfer scheme capable of reducing the packet processing overhead by eliminating a need to decrypt and re-encrypt the entire packet at a time of relaying encrypted packets. In a packet processing device for relaying encrypted packets, a packet transferred to the packet processing device is received, where the packet has a packet processing key to be used in a prescribed packet processing with respect to a data portion of the packet, and the packet processing key is encrypted by using a first master key shared between a last device that applied a cipher communication related processing to the packet and the packet processing device. Then, the packet processing key in the received packet is decrypted, without carrying out the prescribed packet processing with respect to the data portion of the packet, and the decrypted packet processing key is re-encrypted by using a second master key shared between a next device to apply the cipher communication related processing to the packet and the packet processing device. Then, the packet with the re-encrypted packet processing key encoded therein is transmitted toward a destination of the received packet.

[Atsushi Inoue, Masahiro Ishiyama, Atsushi Fukumoto, Yoshiyuki Tsuda, Atsushi Shimbo, Toshio Okamoto] JPX Kawasaki A packet transfer scheme for realizing a control of a packet inspection device to pass only packets from those mobile computers that can be recognized as authenticated among non-management target mobile computers that had moved inside the network, to outside the network. A packet inspection device judges whether a passing of a packet transmitted from a mobile computer other than own management target computers to outside the own network is permitted or not, according to a mobile computer identification information contained in the packet, and sends a message indicating a refusal of the passing of the packet to the mobile computer when the passing of the packet is judged to be not permitted; and then transfers the packet when the passing of the packet is judged to be permitted; and also checks whether a user information regarding a user of the mobile computer satisfies a prescribed condition or not, upon receiving a message requesting a key information for generating the mobile computer identification information from the mobile computer, and returns a requested key information to the mobile computer when the user information satisfies the prescribed condition.

[Inoue Atsushi(Tokyo,JPX), Ishiyama Masahiro(Tokyo,JPX), Fukumoto Atsushi(Tokyo,JPX), Tsuda Yoshiyuki(Tokyo,JPX), Shimbo Atsushi(Tokyo,JPX), Okamoto Toshio(Tokyo,JPX)] A mobile computer and a packet encryption and authentication method which

[INOUE ATSUSHI, ISHIYAMA MASAHIRO, FUKUMOTO ATSUSHI, TSUDA YOSHIYUKI, SHINPO ATSUSHI, OKAMOTO TOSHIO] PROBLEM TO BE SOLVED: To reduce the overhead of packet processing by deciphering/re- ciphering only a packet processing key without processing with respect to the data part of a transferred ciphering packet and the packet to a destination computer. SOLUTION: Data packet ciphering gate ways 4a and 4c for ciphering communication between a control computers are intalled at networks 1a and 1c. Similarly, a mobile computer 2 is also provided with a packet encoding function similar to the gate ways 4a and 4c. Then, the computer 2 setting inside the network 1a to be a home position moves and cipher-communicates with the communication opposite host 3 of the network 1c. A home agent 5 within the home network 1a is in charge of the position information management and the packet routing of the computer 2 and receives position information from the computer 2. Then a data packet setting a present position to be a transmission destination is transmitted by being capsulated.

[Atsushi Inoue, Masahiro Ishiyama, Atsushi Fukumoto, Yoshiyuki Tsuda, Atsushi Shimbo, Toshio Okamoto] JPX Kawasaki A mobile computing scheme capable of carrying out a proper packet transfer according to a current location of the mobile computer by accounting for the network operating policy. A mobile computer carries out a prescribed communication processing according to recognition results as to whether the mobile computer is located inside or outside the home network at which a mobile computer management device of the mobile computer is provided, and whether or not there exists a packet processing device which has a packet transmitted by at least one of the mobile computer and a correspondent computer as an encryption and authentication processing target. Also, a packet processing device carries out a prescribed transfer processing according to recognition results as to whether at least one of a source computer and a destination computer of a packet to be transferred is a moving mobile computer which is moving outside its home network, and whether or not there exists a packet processing device which has a packet transmitted by at least one of the source computer and the destination computer as an encryption and authentication processing target.

[Inoue Atsushi(Kanagawa,JPX), Ishiyama Masahiro(Tokyo,JPX), Fukumoto Atsushi(Kanagawa,JPX), Tsuda Yoshiyuki(Kanagawa,JPX), Shimbo Atsushi(Tokyo,JPX), Okamoto Toshio(Tokyo,JPX)] A packet processing and packet transfer scheme capable of reducing the packet processing overhead by eliminating a need to decrypt and re-encrypt the entire packet at a time of relaying encrypted packets. In a packet processing device for relaying encrypted packets, a packet transferred to the packet processing device is received, where the packet has a packet processing key to be used in a prescribed packet processing with respect to a data portion of the packet, and the packet processing key is encrypted by using a first master key shared between a last device that applied a cipher communication related processing to the packet and the packet processing device. Then, the packet processing key in the received packet is decrypted, without carrying out the prescribed packet processing with respect to the data portion of the packet, and the decrypted packet processing key is re-encrypted by using a second master key shared between a next device to apply the cipher communication related processing to the packet and the packet processing device. Then, the packet with the re-encrypted packet processing key encoded therein is transmitted toward a destination of the received packet.

[Inoue Atsushi(Tokyo,JPX), Ishiyama Masahiro(Tokyo,JPX), Fukumoto Atsushi(Tokyo,JPX), Tsuda Yoshiyuki(Tokyo,JPX), Shimbo Atsushi(Tokyo,JPX), Okamoto Toshio(Tokyo,JPX)] A mobile computing scheme capable of carrying out a proper packet transfer according to a current location of the mobile computer by accounting for the network operating policy. A mobile computer carries out a prescribed communication processing according to recognition results as to whether the mobile computer is located inside or outside the home network at which a mobile computer management device of the mobile computer is provided, and whether or not there exists a packet processing device which has a packet transmitted by at least one of the mobile computer and a correspondent computer as an encryption and authentication processing target. Also, a packet processing device carries out a prescribed transfer processing according to recognition results as to whether at least one of a source computer and a destination computer of a packet to be transferred is a moving mobile computer which is moving outside its home network, and whether or not there exists a packet processing device which has a packet transmitted by at least one of the source computer and the destination computer as an encryption and authentication processing target.