Mitsubishi Rayon Company, Limited

Nec Electronics Corporation

Kyosan Electric Mfg. Co., Ltd.

Makoto Kaneko

Takakazu Endo

Mami Kato

Eiji Satou

Osamu Kato

Satoshi Nakamura

Tetsuji Nakamura

Wataru Mizunashi

Yoshihiro Hashimoto

Naoshi Murata

Toshihiko Fukuda

Yasuhiro Ninomiya

Youichi Murakami

Katsunori Nakajima

Yuichiro Nakayama

Provided is a technique for detecting a vehicle type and a traveling direction of a vehicle by an electromagnetic induction sensor. A sensor unit (), which is an electromagnetic induction sensor, includes a transmission coil (TX), a first reception coil (RX), and a second reception coil (RX). A magnetic field of a vehicle () made of steel attracts a magnetic field emitted from the transmission coil (TX) (S). As the vehicle () approaches, a stateindicated by the broken line changes to a stateindicated by the dash-dot line (S). A reduction in induced voltage and a phase change occur with respect to the induced voltage when the first reception coil (RX) is in the magnetic field of state(when the vehicle is not detected) (S). The differential output signals of the second reception coil RXand the first reception coil RXchange according to the advancement of the vehicle and according to the unevenness of the vehicle bottom portionand the metal species (S). The trajectory image representing a differential output signal in rectangular coordinates of a reception level and a phase difference is different for each vehicle, so the vehicle type may be distinguished.

Detection system

A method for producing lactones, which comprises reacting an amide compound of Formula (I): [wherein X represents a halogen atom; R, R' and Rto Reach independently represents a hydrogen atom or any desired substituent; and n represents an integer of 0 to 2] with an aqueous medium.

Process for producing lactone

Disclosed is a PLL circuit including a deadlock detection circuit includes a counter circuit for counting a clock signal. In a deadlock state, the deadlock detection circuit outputs a deadlock detection signal responsive to an output signal from the counter circuit when the counter circuit has counted a preset number of the clock signal. The deadlock detection signal serves to release the PLL circuit from the dead lock. During the normal operation, the counter circuit does not impart noise to the PLL circuit.

PLL circuit with deadlock detection circuit

A process for producing a monomer for resists represented by the following general formula 1: 

Process for producing monomer

Provided is an industrially advantageous process for producing S,S-2-hydroxypropylenediamine-N,N&prime;-disuccinic acid which does not use expensive optically active substances. S,S-2-hydroxypropylenediamine-N,N&prime;-disuccinic acid is stereospecifically produced from fumaric acid and 2-hydroxypropylenediamine by the action of ethylenediamine disuccinic acid ethylenediamine lyase (EDDS-ase) or from maleic acid and 2-hydroxypropylenediamine by combining the action of EDDS-ase with the action of maleic acid isomerase.

Processes for producing S,S-2-hydroxypropylenediamine-N-N&prime;-disuccinic acid

The present invention relates to a method of producing &lsqb;S,S&rsqb;-ethylenediamine-N,N&prime;-disuccinate wherein a microorganism having malate isomerase activity or matter processed therefrom and a microorganism having ethylenediamine-N,N&prime;-disuccinate ethylenediamine lyase activity or matter processed therefrom are allowed to act on a substrate solution containing maleic acid, maleic anhydride, or a maleic acid salt, and ethylenediamine, in the presence of at least one metal ion selected from the group consisting of alkaline earth metals, iron, zinc, copper, nickel, aluminum, titanium and manganese. The present invention enables to accumulate &lsqb;S,S&rsqb;-ethylenediamine-N,N&prime;-disuccinate in a higher yield and at a high concentration within a reaction system using maleic acid as a raw material.

Methods for producing &lsqb;S,S&rsqb;-ethylenediamine-N,N&prime;-disuccinate

Process for producing alkali metal

This invention relates to a method for removing fumarase activity from a microorganism or processed product thereof having ethylenediamine-N,N'-disuccinic acid ethylenediamine lyase activity, which includes treating the microorganism or processed product thereof with an aqueous alkaline solution at a pH of 8.0 to 10.5 in the presence of at least one salt with a concentration of 5 mM to 1000 mM. The salt is preferably selected from the group consisting of sodium, potassium, ammonium and C.sub.2-6 alkanediamine salts of boric acid, phosphoric acid, hydrochloric acid, sulfuric acid, acetic acid, oxalic acid, fumaric acid, maleic acid and ethylenediamine-N,N'-disuccinic acid, and mixtures thereof. This invention also relates to a microorganism or processed product thereof having reduced fumarase activity obtainable by the above described method, and to a method for producing an optically active aminopolycarboxylic acid from fumaric acid and a compound having amino group in the presence of the microorganim or processed product thereof having reduced fumarase activity as a catalyst.

Method for removing fumarase activity, microorganisms obtainable by the

A process for producing an optically active aminopolycarboxylic acid, such as S,S-ethylenediamine-N,N'-disuccinic acid, from a mixture of a diamine, such as ethylenediamine, with fumaric acid using a microorganism having a lyase activity, wherein at least one metal ion selected from the group consisting of an alkaline earth metal, iron, zinc, copper, nickel, aluminum, titanium and manganese is added to the reaction system. According to this process, aminopolycarboxylic acids, such as S,S-ethylenediamine-N,N'-disuccinic acid, or metal complexes thereof, can be appropriately and efficiently produced while improving the reaction yield.

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Kanagawa, Japan

Makoto Kaneko