Nippondenso Co., Ltd.

Toyota Jidosha Kogyo Kabushiki Kaisha

Amano Pharmaceutical Co., Ltd.

Yutaka Imai

Jiro Nakano

Tooru Mizuno

Yoshinao Koide

Tomonari Ogawa

Seiji Nakane

Motoharu Ezaki

Chiho Tsurumi

Masatoshi Kitagawa

Hidero Tanaka

A DNA fragment containing a caffeine demethylase gene produced by a microorganism belonging to the genus Pseudomonas and capable of assimilating caffeine and a process for producing a 3-methyl-7-alkylxanthine comprising cultivating a novel bacterium strain of the genus Pseudomonas having been transformed with a recombinant DNA having integrated therein the above-mentioned DNA fragment in a nutrient culture medium containing a 1,3-dimethyl-7-alkylxanthine to produce a 3-methyl-7-alkylxanthine in the culture and recovering the produced 3-methyl-7-alkylxanthine from the culture are disclosed, as well as a process for producing 3-methyl-7-propylxanthine, comprising cultivating a microorganism capable of converting 1,3-dimethyl-7-propylxanthine to 3-methyl-7-propylxanthine or a mutant thereof in a nutrient culture medium containing 1,3-dimethyl-7-propylxanthine, to produce 3-methyl-7-propylxanthine in the culture and recovering the produced 3-methyl-7-propylxanthine from the culture.

Caffeine demethylate gene-containing DNA fragment and microbial process

Food additive and use thereof

In a bar-graph type display method and system for automotive vehicle for monitoring an engine speed of the automotive vehicle and displaying the result of monitoring stepwise, when an indication level adjacent to the present indication level is detected a predetermined number of times successively, the present indication level is changed to the adjacent indication level, and when an indication level other than the present or adjacent indication level is detected the present indication level is changed to the detected indication level immediately.

Display method and system

A rotation detector wherein a rotary disk formed with slits in the circumferential direction thereof at predetermined regular intervals and connected to a driving source is disposed between a light emitting element and a light receiving element, and the light sensed by the light receiving element is intermittenlly interrupted by rotation of the rotary disk, whereby rotation of the driving source is detected. One of the rotation detectors is of such an arrangement that a parallel circuit is constituted by a resistor and a series circuit including a feedback resistor and a switching element, and this parallel circuit connects a power source and a light emitting element. Additionally, another of the rotational detectors is of such an arrangement that a comparator, in which a reference level is set, is used to compare outputs from a light emitting element with the reference level. As the result, misdetection occurring when the quantity of light sensed by a light receiving element is as low as one half and misdetection caused by external factors mixed in from the power source system and the like.

Rotation detector

Growing community of inventors

Aichi, Japan

Yutaka Imai