patent

Today, I would like to introduce an invention related to September 5. What I will introduce this time is dynamic random-access memory (DRAM) devised by American electronical engineer and inventor Robert H. Dennard (1932.9.5 ~). Today, September 5th, is his 89th birthday.

DRAM is a type of semiconductor memory. It has the disadvantage of constantly consuming power for refreshing (memory retention operation) because information is lost when it is discharged, but it is widely used in computers’ main storage devices, digital televisions, and digital cameras, etc. due to its large capacity and low cost.
Currently, all the main storage devices of computers are DRAM. In recent years, DRAMs that specialize in low power consumption have also appeared.

The DRAM we use every day was conceived by Dennard in 1966 at IBM Thomas J. Watson Research Center. The following year of 1967, a patent application was filed, and it was registered in 1968 (US3387286A). Dennard also won the Kyoto Prize in 2013.

By the way, IBM Thomas J. Watson Research Center is a research division of IBM. In addition to Dennard, it is known that many prominent scientists such as Benoit Mandelbrot in mathematics and Leo Esaki in physics also worked there.

Related Link: Robert H. Dennard – Wikipedia

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An old friend of mine has been making accessories with UV resin.
UV resin is a special resin solution that hardens under UV light.
After pouring the UV resin solution into a mold of your choice, you can put your favorite small objects in the mold, or you can color the UV resin solution itself and then expose it to UV light to harden it into your original accessory.

Even though it is just a resin solution, if you look into it, you will find that different manufacturers have different technologies, such as ease of hardening, blending with inclusions, durability, etc. that Patents for manufacturing methods have been applied.
There are many kits available at general stores and stationery stores in town, and you may see them, but I feel that it is a very deep world where the sense of the creator is important because it is easy to make. (Swimmer)

Shortly after the beginning of the new semester, I found one of the teaching materials that my child brought back from school that said, “patented product”. On the front cover, it was labeled “Repeating Keisan Drill Raku Raku Note(Repeating Calculation Workbook Easy Note)”, and a nostalgic illustration of “3-chome Tama” on it.

I wondered what kind of content was in the patent on the notebook, so I looked it up on the familiar J-Plat Pat, and the summary said, “To provide exercise notebooks and problem practice materials that allow students to learn how to properly write and use notebooks by solving problems using problem workbooks.”

I looked through the contents of the workbook, and even in them, I could see the ingenuity that went into making it easy for children to learn and write. I was impressed that this was a great invention, and I was reminded again that there are various forms of invention. (Marigold)

Japanese Patent Registration Number: 5031612
Introduction page of Easy Note (Shingakusha Co. Ltd.) (Japanese)
https://www.sing.co.jp/shop/g/gdnote-kei/

The other day, when I was looking at the JPO public relations magazine “Tokkyo”, published on February 5, 2021, I found a product that caught my eye.
Its name is “Nekojasuri”.

This product is a file for cats to groom that was made to resemble the texture of cats’ tongue. It was made based on the tool manufacturing technology, developed by Wataoka Co., Ltd., a long-established file maker in Kure City, Hiroshima Prefecture, which has been in business for over 120 years.
How flexible the idea of the person who developed it is to associate the tongue of a cat with a file. I envy the person with such an inspiration.

Soon I bought it and gave it to my cat. Meow ❣

My cat is not usually a sweet type, but it is rubbing its head on the file.
It might be of a feeling that cannot be obtained from human hands. (Time)

Patent
[Japanese Patent number] No. 6698985
[Registration date] May 7, 2019
[Title of Invention] Massage device for pets

Hello. This is Hiro.
I bought wasabi in a tube container, made and sold by S&B Foods Inc., with the patent number displayed.

When you open the cap, you can see that the shape around the screw part of the container and the inside of the cap have some designs to them.

Thanks to the locking part, it is difficult to loosen when the cap is closed, and it will not open without permission. Also, thanks to the screw part divided into four in the circumferential direction, it can be easily opened with a slight twist of the cap. In addition, the vertical grooves make it easy to crush the tip of the container and squeeze out the wasabi.

By the way, the problem to be solved by the invention of Japanese Patent No. 660532 is, “Compared to the conventional invention, the impact of outward convex of the container body constituting the loosening part just before overcoming the inward part of the lid is to be made stronger and the force required for this is to be increased. Furthermore, the distance to be overcome is shortened, thereby making the clearer feeling when the lid is closed.” Certainly, when you close the cap, you can clearly feel that it is closed.
I am surprised that such tube containers, which have been around for a long time, have been improved and made easier to use.

The detailed contents of this patent can be found at the link below (J-PlatPat).
Japanese Patent No. 6006532 (Click “English” at the top right of the page)
“Container and packaged food”.