Showa Yakuhin Kako Co., Ltd.

Alpine Electronics, Inc.

Nippon Steel Corporation

Other

Uha Mikakuto Co., Ltd.

Tokyo Boshi Kabushiki Kaisha

Gc Showayakuhin Corporation

Fumio Tanaka

Mutsumi Shibuya

Renji Hayashi

Akio Yamaguchi

Mitsuhiro Haraguchi

Yoshihiko Kawasaki

Yukio Kawagishi

Yoshinori Kato

Yoshinori Katoh

Kiyoshi Oguchi

Tohru Iuchi

Toshio Akagi

Ichiro Yamada

Kuniaki Asami

Churyo Suzuki

Chizuko Ohshina

Shin'ichi Imoto

Yuichi Kinoshita

Shuji Naito

Sumitada Kakimoto

Masahiro Ito

Motonori Yamauchi

Chie Shibuya

Akihiro Senda

Michiaki Sakakibara

Ikuo Kitagawa

Kiyoshi Wakabayashi

Yoshihiko (deceased) Kawasaki

Provided is an anesthetic solution-filled cartridge-type electric dental syringe, wherein the plunger has been shortened but the plunger can nevertheless be extended to the distance necessary to evacuate the anesthetic solution from the cartridge. The syringe comprises: an extension tube into which a plunger is movably inserted, the extension tube being movably disposed in the through hole of a support block and having racks formed in the side surface thereof that are coordinated with the racks of the plunger; and a means for the plunger to draw the extension tube to engage the racks of the extension tube with a pinion when the plunger reaches the middle of the distance corresponding to the anesthetic solution accommodation length of the cartridge. By the engagement of the racks of the extension tube with the pinion, the plunger moves together with the extension tube for the remainder of the distance corresponding to the anesthetic solution accommodation length of the cartridge.

Anesthetic solution-filled cartridge-type electric dental syringe

A motorized syringe for use with two types of dental anesthetic solution-filled cartridges, having a plunger plug in the 1.8 ml cartridge pushed by a push rod by a length required to push a plunger plug in the 1.0 ml cartridge. The syringe includes a cartridge holder for use with 1.0 ml and 1.8 ml cartridges, the push rod having a 1.0 ml position and a 1.8 ml position drawn back from the 1.0 ml position so that push rod movement can end at a common terminal position for both, a sleeve adapted to receive the push rod rear end when pushed back from the common terminal position, and to be not interfered with by the push rod's rear end when it is in the 1.0 ml position, the sleeve being pushed rearward with the push rod's rear end when pushed back to the 1.8 ml position.

Motorized syringe for use with two types of dental anesthetic solution-containing cartridges

A linear cartridge-type motorized dental syringe has a plunger rod aligned with a drive shaft of a motor, the externally threaded plunger rod movable longitudinally, but not rotatably, relative to the casing, a cylindrical body rotated by the shaft, a nut having arm-like nut halves with internal threads engaging external threads on the rod, a locking ring for rotation around an axis of the rod and for longitudinal movement between a rearward position where the ring forces the threads on the nut halves to engage the threads on the rod, and forward where the ring releases engagement of the threads, pusher pins for moving the ring rearward when the cartridge holder is inserted, and a spring for pushing the locking ring back to the forward position, with rotation of the cylinder body resulting in rotative motion of the nut around the rod to move it forward.

Linearly motorized dental syringe

An electrically-driven dental injector used in orally injecting such an injection liquid as an anesthetic in dental treatment. Electrically-driven dental injectors includes one having a mechanism for disengaging a pinion ( ) from a rack ( ) in order to retract a plunger rod ( ) upon completion of injection; however, it has heretofore been necessary to manually operate the operating part from outside each time. The inventive electrically-driven dental injector is so arranged that the plunger rod can be manually pushed back directly oupon completion of injection without requiring manual operation, and, to this end, the injector comprises a latch mechanism ( ) for engaging/disengaging the ring gear ( ) of a planetary reduction gear ( ) with/from a casing ( ), and an operating rod ( ) extending through a support member ( ) and functionally cooperating with the latch mechanism ( ).

Electrically-driven dental injector

Barrel mounting device in cartridge-type dental injection device

Dental motor injector

Scrap containing copper is discriminated from iron scrap after being pulverized by imaging iron scrap using a color TV camera, treating RGB signals processed by each of the points in the image as a color vector, and discriminating scrap containing copper from iron scrap when the saturation value of the color vector is larger than a predetermined value and the hue angle of the color vector lies within a predetermined range.

Method of automatically discriminating and separating scraps containing

A test kit for a chemical test or microbiological test, which comprises at least one independent sample-receiving part on a support is disclosed. The test kit of the present invention is usable for various chemical and microbiological tests which have been conducted with a plastic microplate and which have necessitated many reaction and culture steps in the prior art. The test kit of the present invention can be produced at an extremely low cost because of its structure. The test kit can previously contain a reagent necessitated for the test to remarkably facilitate the test.

Chemical or microbiological test kit

Test agent composition for dentistry

Handset telephone and stand unit

An interferometric contact-free measuring method for sensing, by a laser beam, motional surface deformation of a workpiece subject to an ultrasonic vibration, comprising splitting the laser beam into a measuring beam incident upon a measuring point on the workpiece and a reference beam incident upon a reference point close to the measuring point, and bringing the two beams, after reflection, into a common optical detector.

Interferometric contact-free measuring method for sensing motional

Mobile security unit

Remote controller for mobile security system

Dental root canal-treating appliance usable for cleaning pulp cavity and/or for application of medicine in the treatment of the root canal, the appliance being in the form of a slender rod of the diameter larger than 0.3 mm and of the length about 30 mm with appropriate numbers of continuous slits or conduits for absorption of liquid and/or blood in the canal and/or for retention of the medicine, at least one end of the rod, over the length less than about 2 mm from the tip, a thinner end section of the diameter about 0.25 mm being formed so that a shoulder is formed, the shoulder acts as an engagement-edge or stop-edge against the bottom of the canal and apical foramen in the diseased teeth.

Dental root canal-treating appliance

Growing community of inventors

Kawasaki, Japan

Fumio Tanaka