Toda Kogyo Corporation

Hirotani Co., Ltd.

Unitika Ltd.

Dai-ichi High Frequency Co., Ltd.

Tetsuro Toda

Shigeru Takaragi

Yasuhiko Fujii

Atsunori Kishimoto

Kazuo Fujioka

Toshiyuki Hakata

Kazumi Yamamoto

Tomohisa Moriya

Kazutaka Ohshita

Takashi Fujii, Deceased

Yoshiaki Echigo

Nanao Horiishi

Eiichi Kurita

Norimichi Nagai

Seiji Okazaki

Kotaro Hirayama

Keiichi Asami

Wataru Oda

Tomohiro Honda

Tsutomu Sakaida

Souichiro Kishimoto

Kazushige Kawai

Masanori Terasaki

The present invention relates to carbon nanotubes that are excellent in dispersibility and a process for producing the carbon nanotubes. The carbon nanotubes according to the present invention each comprise a wall that comprises a parallel portion and a narrowed portion having a tube outer diameter that is not more than 90% of a tube outer diameter of the parallel portion. Thus, the carbon nanotubes are readily dispersible owing to a high abundance ratio of easily-breaking portions.

Carbon nanotube and process for producing the carbon nanotube, and lithium ion secondary battery using the carbon nanotube

The disclosure described a material having a damping property, comprising 100 parts by weight of a binder resin composed of 85 to 99% by weight of at least one base resin selected from the group consisting of polypropylenes, polystyrenes, acrylonitrile-butadiene-styrene copolymers, polycarbonates, polyphenylene ethers and modified polyphenylene ethers and 1 to 15% by weight of styrene-isoprene-styrene block copolymer, and 1 to 20 parts by weight of iron compound particles.

Material having a damping property and masterbatch pellets thereof

Material having a damping property and masterbatch pellets therefor

Self-fusion type damping material

Disclosed herein is a damping material comprising:

Damping material

Disclosed herein is a vehicle damping sheet comprising a blend-mixture comprising a filler composed of mica, iron oxide particles and a auxiliary filler, and a binder,

Vehicle damping sheet

Disclosed herein is a method for bonding a resin part, which comprises disposing a magnetic complex composed of a resin and magnetic particles as a heating-medium at the resin parts to be bonded, and applying an alternating magnetic field to the heating-medium by using a magnetic field generating means composed of an electromagnetic core and an exciting coil, thereby making said heating-medium generate heat for fuse-bonding said resins.

Resin-bonding method

Disclosed herein are magnetic particles used for an electrostatic latent image developer comprising composite particles containing from more than 80% by weight to not more than 99% by weight of fine ferromagnetic particles and a cured phenol resin, and having a number-average particle diameter of from not less than 1 .mu.m to less than 10 .mu.m and an apparent density of not greater than 1.5 g/cm.sup.3.

Magnetic particles used for electrostatic latent image developer and

Disclosed herein are composite carrier particles for electrophotography comprising 80 to 99% by weight of ferromagnetic fine particles and a phenol resin, and having a number-average particle diameter of 10 to 1,000 .mu.m, a bulk density of not more than 2.0 g /cm.sup.3, and a curved surface configuration, and a process for producing the same.

Composite carrier particles for electrophotography and process for

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Hiroshima, Japan

Tetsuro Toda