KA

Kunio Arai

HS Hitachi Seiko: 14 patents #2 of 106Top 2%
HM Hitachi Via Mechanics: 13 patents #2 of 109Top 2%
NI Nissan Chemical Industries: 3 patents #343 of 1,150Top 30%
Ricoh Company: 2 patents #5,693 of 9,818Top 60%
SL Suntory Holdings Limited: 2 patents #246 of 846Top 30%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
AC Ajinomoto Co.: 1 patents #1,164 of 2,190Top 55%
TO Toyota: 1 patents #15,335 of 26,838Top 60%
GI Genesis Research Institute: 1 patents #21 of 42Top 50%
IC Idemitsu Petrochemical Co.: 1 patents #305 of 578Top 55%
JT Japan Science And Technology: 1 patents #225 of 836Top 30%
TC Tohoku Techno Arch Co.: 1 patents #52 of 193Top 30%
Overall (All Time): #75,962 of 4,157,543Top 2%
41
Patents All Time

Issued Patents All Time

Showing 26–41 of 41 patents

Patent #TitleCo-InventorsDate
5635154 Process for producing fine metal oxide particles Tadafumi Ajiri 1997-06-03
5480630 Process for producing fine metal oxide particles Tadafumi Ajiri 1996-01-02
5433878 Method for producing fine particles of barium ferrite Tadafumi Ajiri, Shin-ichi Yuki, Isao Ota 1995-07-18
5349084 Process for recovering high-purity organic acid Akihiro Shishikura, Hiroshi Kimbara, Katsuhisa Yamaguchi 1994-09-20
5332341 Pressure foot of printed circuit board drilling apparatus Yasuhiko Kanaya, Kazunori Hamada 1994-07-26
5315072 Printed wiring board having blind holes Yasuhiko Kanaya 1994-05-24
5199830 Printed circuit board presser device in drilling machine Tamio Otani, Kazuhiro Kogure, Yasuhiko Kanaya, Kazunori Hamada 1993-04-06
5108236 Low mass spindle and Z-axis unit Yasuhiko Kanaya 1992-04-28
5087156 Printed circuit board boring machine Yasuhiko Kanaya, Tamio Otani 1992-02-11
5078558 Low mass spindle and Z-axis unit Yasuhiko Kanaya 1992-01-07
5066171 Method for drilling a printed circuit board Hiromi Nishiyama, Hiroshi Aoyama, Yasuhiko Kanaya 1991-11-19
5024562 Pressure foot for printed circuit board drilling machine Yasuhiko Kanaga 1991-06-18
5010232 Method of and apparatus for perforating printed circuit board Yasuhiko Kanaya 1991-04-23
4997319 Apparatus for drilling a hole in a printed circuit board Hiromi Nishiyama, Hiroshi Aoyama, Yasuhiko Kanaya 1991-03-05
4915550 Pressure foot of printed circuit board drilling apparatus Yasuhiko Kanaya 1990-04-10
4872787 Method of drilling printed circuit board Hiromi Nishiyama, Hiroshi Aoyama, Yasuhiko Kanaya 1989-10-10